Merge branch 'patch-79' into 'master'

Update "introduced in" for filtering by epic

See merge request gitlab-org/gitlab!26178

doc/user/search/index.md

@@ -41,7 +41,7 @@ groups:
    - [Label](../project/labels.md)
    - My-reaction
    - Confidential
-   - Epic ([Introduced](https://gitlab.com/gitlab-org/gitlab/issues/195704) in GitLab 12.8)
+   - Epic ([Introduced](https://gitlab.com/gitlab-org/gitlab/issues/195704) in GitLab 12.9)
    - Search for this text
 1. Select or type the operator to use for filtering the attribute. The following operators are
    available: