Update CHANGELOG.md for 9.3.1

CHANGELOG.md

@@ -2,6 +2,15 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
 
+## 9.3.1 (2017-06-26)
+
+- Fix reversed breadcrumb order for nested groups. !12322
+- Fix 500 when failing to create private group. !12394
+- Fix linking to line number on side-by-side diff creating empty discussion box.
+- Don't match tilde and exclamation mark as part of requirements.txt package name.
+- Perform project housekeeping after importing projects.
+- Fixed ctrl+enter not submit issue edit form.
+
 ## 9.3.0 (2017-06-22)
 
 - Refactored gitlab:app:check into SystemCheck liberary and improve some checks. !9173

changelogs/unreleased/34010-fix-linking-to-parallel-diff-line-number-creating-gray-box.yml

----
-title: Fix linking to line number on side-by-side diff creating empty discussion box
-merge_request:
-author:

changelogs/unreleased/dm-requirements-txt-tilde.yml

----
-title: Don't match tilde and exclamation mark as part of requirements.txt package
-  name
-merge_request:
-author:

changelogs/unreleased/fix-34019.yml

----
-title: Perform project housekeeping after importing projects
-merge_request:
-author:

changelogs/unreleased/issue-inline-edit-quick-submit.yml

----
-title: Fixed ctrl+enter not submit issue edit form
-merge_request:
-author:

changelogs/unreleased/mk-fix-breadcrumb-order-33938.yml

----
-title: Fix reversed breadcrumb order for nested groups
-merge_request: 12322
-author:

changelogs/unreleased/mk-fix-issue-34068.yml

----
-title: Fix 500 when failing to create private group
-merge_request: 12394
-author: