more gitlab reasoning

tsa/howto/gitlab.mdwn

@@ -107,7 +107,9 @@ We're hoping gitlab will be a good fit because:
  * Gitlab will allow us to collect our different engineering tools
    into a single application: Git repository handling, Wiki, Issue
    tracking, Code reviews, and project management tooling.
- * Gitlab is well-maintained.
+ * Gitlab is well-maintained, while Trac plugins are not well
+   maintained and Trac itself hasn't seen a release for over a year
+   (since 2019)
  * Gitlab will allow us to build a more modern approach to handling CI
    for our different projects. This is going to happen after the
    ticket and wiki migration.