Rls date update for Guilin maintenance

Change-Id: I1cd2bcc56ae9b60f4658652865669f85d585ac40
Signed-off-by: vv770d <vv770d@att.com>
Issue-ID: DCAEGEN2-2740
diff --git a/docs/sections/release-notes.rst b/docs/sections/release-notes.rst
index 87f357e..af7b323 100644
--- a/docs/sections/release-notes.rst
+++ b/docs/sections/release-notes.rst
@@ -300,7 +300,7 @@
 | **Release designation**              | Guilin Maintenance Release           |
 |                                      |                                      |
 +--------------------------------------+--------------------------------------+
-| **Release date**                     | 2021/02/11                           |
+| **Release date**                     | 2021/04/19                           |
 |                                      |                                      |
 +--------------------------------------+--------------------------------------+