Add release date to Gluster 9.5 release notes

Author: Shwetha-Acharya

docs/release-notes/9.5.md

@@ -1,5 +1,7 @@
 # Release notes for Gluster 9.5
 
+**Release date:** 1st-Feb-2021
+
 This is a bugfix and improvement release. The release notes for [9.0](9.0.md), [9.1](9.1.md), [9.2](9.2.md), [9.3](9.3.md), [9.4](9.4.md)  contain a listing of all the new features that were added and bugs fixed in the GlusterFS 9 stable release.
 
 **NOTE:**