Card documentation

This merge request intends to start discussing the documentation for the Card component.

#287

.gitlab/issue_templates/Figma component.md

+<!-- Start by making a copy of the component template to your own drafts.
+
+In Figma:
+1. Duplicate the component template https://www.figma.com/file/OmvFfWkqEsdGhXAND133ou/Component?node-id=0%3A1
+2. Open the duplicate, then use the dropdown next to the file name to select “Move to Project…”
+   and select your Drafts as the new location.
+3. Update the template with your component name and start designing ;)
+-->
+
+<!--Add a short description of the component. If it’s helpful, add a checklist of variations
+and states to the description so that a reviewer can be sure to cross reference everything
+that has been completed.-->
+
+<!--Use the Figma share feature and make sure that “anyone with the link” can view. Then,
+specifically invite the reviewer with “edit” permissions selected. Anyone can duplicate the
+file to their own drafts and edit from there, but the reviewer can directly edit and
+collaborate on the file. This will help maintain the integrity of the initial draft.-->
+
+[View component in Figma →](ADD LINK TO FIGMA FRAME)
+
+### Checklist
+
+Make sure the following are completed before closing the issue:
+
+1. [ ] **Assignee**: Create component in your own draft file in Figma using the
+[component template](https://www.figma.com/file/OmvFfWkqEsdGhXAND133ou/%5BComponent%5D),
+including all variations and states.
+1. [ ] **Assignee**: Ask another designer who is familiar with the [Figma workflow](https://gitlab.com/gitlab-org/gitlab-design/-/blob/master/CONTRIBUTING-Figma.md) to review your component
+(make sure they have edit permissions).
+1. [ ] **Reviewer**: Review and approve assignee’s addition. Ensure that component
+matches Sketch specs, includes all current variations and states, and (if applicable)
+is responsive.
+1. [ ] **Assignee**: Add notes about the component construction to the
+[Figma component build notes](https://gitlab.com/gitlab-org/gitlab-design/issues/778)
+issue description. Check off the component when complete.
+1. [ ] **Assignee**: Add the component to the **Pajamas UI Kit** file, and view
+the component in the Assets panel to ensure it aligns with what’s outlined in the
+[document and asset library structure](https://gitlab.com/gitlab-org/gitlab-design/-/blob/master/CONTRIBUTING-Figma.md#document-and-asset-library-structure) documentation.
+1. [ ] **Assignee**: Publish the library changes along with a clear commit message.
+1. [ ] **Assignee**: Update component link in the issue.
+1. [ ] **Assignee**: Move your draft file to the **Component archive** Figma project.
+1. [ ] **Assignee**: Create a merge request in this repository with the [component-guideline template](https://gitlab.com/gitlab-org/gitlab-services/design.gitlab.com/-/blob/master/.gitlab/merge_request_templates/component-guideline.md) and link it here as a related merge request. 
+1. [ ] **Assignee**: Once the created merge request is merged, close this issue. 
+
+ Add an agenda item to the next UX weekly call to inform everyone (if it's a new pattern, not yet used in the application).
+Use `View design in Pajamas UI Kit →` for the link text. This replaces any link to
+Sketch Measure specs. Anyone with the link should be able to view the file.
+
+/label ~"UX" ~"Figma"