Merge branch 'docs-update-insights' into 'master'

Insights is now GA

See merge request gitlab-org/gitlab-ce!29494

doc/user/group/index.md

@@ -217,10 +217,8 @@ Get an overview of the vulnerabilities of all the projects in a group and its su
 
 ## Insights **[ULTIMATE]**
 
-> Introduced in [GitLab Ultimate][ee] 11.9 behind the `insights` feature flag.
-
-Configure the Insights that matter for your groups or projects, allowing users to explore data
-such as:
+Configure the Insights that matter for your groups or projects, allowing users
+to explore data such as:
 
 - Triage hygiene
 - Issues created/closed per a given period

doc/user/group/insights/index.md

@@ -5,11 +5,7 @@ type: reference, howto
 # Insights **[ULTIMATE]**
 
 > Introduced in [GitLab Ultimate](https://about.gitlab.com/pricing/) 11.9 behind the `insights` feature flag.
-
-CAUTION: **Beta:**
-Insights is considered beta, and is not ready for production use.
-Follow [gitlab-org/quality/team-tasks#137](https://gitlab.com/gitlab-org/quality/team-tasks/issues/137#general-availability)
-for updates.
+> **Generally Available** (GA) in [GitLab Ultimate](https://about.gitlab.com/pricing/) 12.0.
 
 Configure the Insights that matter for your groups to explore data such as
 triage hygiene, issues created/closed per a given period, average time for merge

doc/user/project/index.md

@@ -84,6 +84,7 @@ When you create a project in GitLab, you'll have access to a large number of
 - [Wiki](wiki/index.md): document your GitLab project in an integrated Wiki.
 - [Snippets](../snippets.md): store, share and collaborate on code snippets.
 - [Cycle Analytics](cycle_analytics.md): review your development lifecycle.
+- [Insights](insights/index.md): configure the Insights that matter for your projects. **[ULTIMATE]**
 - [Security Dashboard](security_dashboard.md): Security Dashboard. **[ULTIMATE]**
 - [Syntax highlighting](highlighting.md): an alternative to customize
   your code blocks, overriding GitLab's default choice of language.

doc/user/project/insights/index.md

 # Insights **[ULTIMATE]**
 
 > Introduced in [GitLab Ultimate](https://about.gitlab.com/pricing/) 11.9 behind the `insights` feature flag.
-
-CAUTION: **Beta:**
-Insights is considered beta, and is not ready for production use.
-Follow [gitlab-org/quality/team-tasks#137](https://gitlab.com/gitlab-org/quality/team-tasks/issues/137#general-availability)
-for updates.
+> **Generally Available** (GA) in [GitLab Ultimate](https://about.gitlab.com/pricing/) 12.0.
 
 Configure the Insights that matter for your projects to explore data such as
 triage hygiene, issues created/closed per a given period, average time for merge