misc: 21.10.1 Release Notes

Type: docs
Change-Id: I4c9474f78c1226608e11ed4822b7fe091cb70c3e
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>

Author: ayourtch

RELEASE.md

@@ -1,5 +1,6 @@
 # Release Notes    {#release_notes}
 
+* @subpage release_notes_21101
 * @subpage release_notes_2110
 * @subpage release_notes_2106
 * @subpage release_notes_2101
@@ -33,6 +34,14 @@
 * @subpage release_notes_1609
 * @subpage release_notes_1606
 
+@page release_notes_21101 Release notes for VPP 21.10.1
+
+This is bug fix release.
+
+For the full list of fixed issues please refer to:
+- fd.io [JIRA](https://jira.fd.io)
+- git [commit log](https://git.fd.io/vpp/log/?h=stable/2110)
+
 @page release_notes_2110 Release notes for VPP 21.10
 
 More than 358 commits since the previous release, including 187 fixes.