Merge branch 'code-review-analytics-screenshot' into 'master'

Add screenshot to code review analytics page, small text changes

Closes #198271

See merge request gitlab-org/gitlab!23644

doc/user/analytics/code_review_analytics.md

@@ -7,17 +7,19 @@ description: "Learn how long your open merge requests have spent in code review,
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/issues/38062) in [GitLab Starter](https://about.gitlab.com/pricing/) 12.7.
 
 Code Review Analytics makes it easy to view the longest-running reviews among open merge requests,
-enabling you to take action on individual MRs and reduce overall cycle time.
+enabling you to take action on individual merge requests and reduce overall cycle time.
 
 NOTE: **Note:**
 Initially, no data will appear. Data is populated as users comment on open merge requests.
 
 ## Overview
 
-Code Review Analytics displays a table of open merge requests which are currently considered to be in code review.
-The code review period for an MR is automatically identified as the time since the first non-author comment.
+Code Review Analytics displays a table of open merge requests that have at least one non-author comment. The review time is measured from the time the first non-author comment was submitted.
+The code review period for a merge request is automatically identified as the time since the first non-author comment.
 
-To access Code Review Analytics, from your project's menu, go to **Project Analytics > Code Review**.
+To access Code Review Analytics, from your project's menu, go to **{chart}** **Project Analytics > Code Review**.
+
+![Code Review Analytics](img/code_review_analytics_v12_8.png "List of code reviews; oldest review first.")
 
 - The table is sorted by review duration, helping you quickly find the longest-running reviews which may need intervention or to be broken down into smaller parts.
 - You can filter the list of MRs by milestone and label.