Refactor the instance-wide custom templates docs

What does this MR do?

Refactor docs introduced by https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/7000 and https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/6631.

Author's checklist

• Apply the correct labels and milestone
• Crosslink the document from the higher-level index
• Crosslink the document from other subject-related docs
• Correctly apply the product badges and tiers
• Port the MR to EE (or backport from CE): always recommended, required when the ee-compat-check job fails

Review checklist

• Your team's review (required)
• PM's review (recommended, but not a blocker)
• Technical writer's review (required)
• Merge the EE-MR first, CE-MR afterwards

	1 Message
	This merge request adds or changes files that require a review from the docs team.

Docs Review

The following files require a review from the Documentation team:

• doc/user/admin_area/settings/img/file_template_admin_area.png
• doc/user/admin_area/settings/img/file_template_user_dropdown.png
• doc/user/admin_area/settings/index.md
• doc/user/admin_area/settings/instance_template_repository.md
• doc/user/project/repository/web_editor.md

To make sure these changes are reviewed, mention @gl-docsteam in a separate comment, and explain what needs to be reviewed by the team. Please don't mention the team until your changes are ready for review.

Generated by Danger

@axil do you think we could make the danger bot to check if we weren't pinged in the MR already and if it isn't one of us who submitted it to reduce the noise?

@axil a couple minor comments ;)

assigned to @axil

added GitLab Premium label

added custom templates label

resolved all discussions

added 1640 commits

• 1bb431cd...bc7d0369 - 1639 commits from branch master
• 5e7abc46 - Refactor the instance-wide custom templates docs

Compare with previous version

Let's ~"Pick into 11.4" since there's a fix to the anchor link.

added 1 deleted label

assigned to @marcia

approved this merge request

merged

marked the checklist item Technical writer's review (required) as completed

mentioned in commit 8fb8052b

Picked into https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/7861, will merge into 11-4-stable ready for 11.4 RC3

removed 1 deleted label

mentioned in commit 5d527982

added Enterprise Edition label

added typemaintenance label