Repair the easy-to-fix Kramdown issues

What does this MR do?

Repairs some of the easier-to-fix Kramdown issues I saw when building the docs site locally just now.

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• I have included changelog trailers, or none are needed. (Does this MR need a changelog?)
• I have added/updated documentation, or it's not needed. (Is documentation required?)
• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have added information for database reviewers in the MR description, or it's not needed. (Does this MR have database related changes?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.
• This change is backwards compatible across updates, or this does not apply.

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• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
• I have tested this MR in all supported browsers, or it's not needed.
• I have informed the Infrastructure department of a default or new setting change per definition of done, or it's not needed.

Security

Does this MR contain changes to processing or storing of credentials or tokens, authorization and authentication methods or other items described in the security review guidelines? If not, then delete this Security section.

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
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doc/development/cascading_settings.md

@@ -82,7 +82,7 @@ cascading_attr :delayed_project_removal
 - `delayed_project_removal_locked_by_ancestor?`
 - `delayed_project_removal_locked_by_application_setting?`
 - `delayed_project_removal?` (Boolean attributes only)
-- `delayed_project_removal_locked_ancestor` (Returns locked namespace settings object [namespace_id])
+- `delayed_project_removal_locked_ancestor` (Returns locked namespace settings object `[namespace_id]`)
 
 ### Attribute reader method (`delayed_project_removal`)
 
@@ -112,9 +112,9 @@ There are a few Rails view helpers, HAML partials, and JavaScript functions that
 
 ### Rails view helpers
 
-[`cascading_namespace_setting_locked?`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/helpers/namespaces_helper.rb#L86)  
+[`cascading_namespace_setting_locked?`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/helpers/namespaces_helper.rb#L86)
 
-Calls through to the [`_locked?` method](#_locked-method) to check if the setting is locked.  
+Calls through to the [`_locked?` method](#_locked-method) to check if the setting is locked.
 
 | Argument    | Description                                                                      | Type                                                                              | Required (default value) |
 |:------------|:---------------------------------------------------------------------------------|:----------------------------------------------------------------------------------|:-------------------------|
@@ -124,9 +124,9 @@ Calls through to the [`_locked?` method](#_locked-method) to check if the settin
 
 ### HAML partials
 
-[`_enforcement_checkbox.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_enforcement_checkbox.html.haml)  
+[`_enforcement_checkbox.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_enforcement_checkbox.html.haml)
 
-Renders the enforcement checkbox.  
+Renders the enforcement checkbox.
 
 | Local            | Description                                                                                                                                                                                                                                                | Type                                                                                           | Required (default value)                        |
 |:-----------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------------------|:------------------------------------------------|
@@ -135,9 +135,9 @@ Renders the enforcement checkbox.
 | `setting_locked` | If the setting is locked by an ancestor group or admin setting. Can be calculated with [`cascading_namespace_setting_locked?`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/helpers/namespaces_helper.rb#L86). | `Boolean`                                                                                      | `true`                                          |
 | `help_text`      | Text shown below the checkbox.                                                                                                                                                                                                                             | `String`                                                                                       | `false` (Subgroups cannot change this setting.) |
 
-[`_setting_label_checkbox.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_setting_label_checkbox.html.haml)  
+[`_setting_label_checkbox.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_setting_label_checkbox.html.haml)
 
-Renders the label for a checkbox setting.  
+Renders the label for a checkbox setting.
 
 | Local                  | Description                                                                                                                                                                                                                                                | Type                                                                                           | Required (default value) |
 |:-----------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:-----------------------------------------------------------------------------------------------|:-------------------------|
@@ -147,9 +147,9 @@ Renders the label for a checkbox setting.
 | `settings_path_helper` | Lambda function that generates a path to the ancestor setting. For example, `settings_path_helper: -> (locked_ancestor) { edit_group_path(locked_ancestor, anchor: 'js-permissions-settings') }`                                                           | `Lambda`                                                                                       | `true`                   |
 | `help_text`            | Text shown below the checkbox.                                                                                                                                                                                                                             | `String`                                                                                       | `false` (`nil`)          |
 
-[`_setting_label_fieldset.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_setting_label_fieldset.html.haml)  
+[`_setting_label_fieldset.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/c2736823b8e922e26fd35df4f0cd77019243c858/app/views/shared/namespaces/cascading_settings/_setting_label_fieldset.html.haml)
 
-Renders the label for a fieldset setting.  
+Renders the label for a fieldset setting.
 
 | Local                  | Description                                                                                                                                                                                                          | Type                 | Required (default value) |
 |:-----------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------|:-------------------------|
@@ -158,13 +158,13 @@ Renders the label for a fieldset setting.
 | `settings_path_helper` | Lambda function that generates a path to the ancestor setting. For example, `-> (locked_ancestor) { edit_group_path(locked_ancestor, anchor: 'js-permissions-settings') }`                                           | `Lambda`             | `true`                   |
 | `help_text`            | Text shown below the checkbox.                                                                                                                                                                                       | `String`             | `false` (`nil`)          |
 
-[`_lock_popovers.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/b73353e47e283a7d9c9eda5bdedb345dcfb685b6/app/views/shared/namespaces/cascading_settings/_lock_popovers.html.haml)  
+[`_lock_popovers.html.haml`](https://gitlab.com/gitlab-org/gitlab/-/blob/b73353e47e283a7d9c9eda5bdedb345dcfb685b6/app/views/shared/namespaces/cascading_settings/_lock_popovers.html.haml)
 
-Renders the mount element needed to initialize the JavaScript used to display the popover when hovering over the lock icon. This partial is only needed once per page.  
+Renders the mount element needed to initialize the JavaScript used to display the popover when hovering over the lock icon. This partial is only needed once per page.
 
 ### JavaScript
 
-[`initCascadingSettingsLockPopovers`](https://gitlab.com/gitlab-org/gitlab/-/blob/b73353e47e283a7d9c9eda5bdedb345dcfb685b6/app/assets/javascripts/namespaces/cascading_settings/index.js#L4)  
+[`initCascadingSettingsLockPopovers`](https://gitlab.com/gitlab-org/gitlab/-/blob/b73353e47e283a7d9c9eda5bdedb345dcfb685b6/app/assets/javascripts/namespaces/cascading_settings/index.js#L4)
 
 Initializes the JavaScript needed to display the popover when hovering over the lock icon (**{lock}**).
 This function should be imported and called in the [page-specific JavaScript](fe_guide/performance.md#page-specific-javascript).