Add v1.1.1 in release note (#4764)

Binyang2014 · web-flow · commit fdf1882695da · 2020-07-27T11:27:00.000+08:00
* change release note

* bump version
diff --git a/RELEASE_NOTE.md b/RELEASE_NOTE.md
@@ -1,5 +1,8 @@
 # OpenPAI Release Note
 
+## July 2020 (version 1.1.1)
+[minor release with hot fix](https://github.com/microsoft/pai/releases/tag/v1.1.1).
+
 ## July 2020 (version 1.1.0)
 
 - Storage:
diff --git a/version/K8S.VERSION b/version/K8S.VERSION
@@ -1 +1 @@
-v1.1.0-1.15.x
+v1.1.1-1.15.x
diff --git a/version/PAI.VERSION b/version/PAI.VERSION
@@ -1 +1 @@
-v1.1.0
+v1.1.1
