Update CHANGES.txt for version 1.3.11

Updated the changes log for version 1.3.11 with new features and fixes.

Author: 007revad

CHANGES.txt

@@ -1,7 +1,9 @@
 v1.3.11
 - Added tar integrity check after backup.
 - Improved Plex process termination logic in Linux_Plex_Backup.sh and Restore_Linux_Plex_Backup.sh.
-- Added optional Plex_Data_Path and Plex_Service_Name settings for distros or containers where they are different.
+- Added optional Plex_Data_Path and Plex_Service_Name settings for distros or containers where they are different to:
+  - `/var/lib/plexmediaserver/Library/Application Support`
+  - `plexmediaserver`
 - Added option to create a current backup before restoring.
 - Fixed comment in config file for sending emails.