Doc lead time, cycle time metrics
Problem to solve
We need documentation on lead and cycle time metrics, consistent with the following RP MR, ref gitlab-com/www-gitlab-com!49865 (diffs, comment 343508753)
Further details
Proposal
Candidate location for doc update: https://docs.gitlab.com/ee/user/analytics/value_stream_analytics.html
Include info consistent with the RP MR, possibly including the screenshot (or something more customized)
Who can address the issue
The developer responsible for the new lead time and cycle time analytics feature