Update 8.6.md

Author: msaju

docs/release-notes/8.6.md

@@ -1,5 +1,7 @@
 # Release notes for Gluster 8.6
 
+**Release date:** 30-Aug-2021
+
 This is a bugfix release. The release notes for [8.0](8.0.md), [8.1](8.1.md), [8.2](8.2.md), [8.3](8.3.md), [8.4](8.4.md) and [8.5](8.5.md) contain a listing of all the new features that were added and bugs fixed in the GlusterFS 8 stable release.
 
 **NOTE:**