Revise changelog for version 1.3.11 updates

Updated CHANGES.txt to reflect new features and improvements.

Author: 007revad

CHANGES.txt

@@ -1,9 +1,10 @@
 v1.3.11
 - Added tar integrity check after backup.
-- Added optional Plex_Data_Path and Plex_Service_Name settings for distros or containers where they are different to:
+- Added optional Plex_Data_Path and Plex_Service_Name settings in config file 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.
+- Added option in config file to create a current backup before restoring.
+- Now shows which tar is about to be restored to where and asks you to confirm overwriting the existing Plex database.
 - Improved Plex process termination logic in Linux_Plex_Backup.sh and Restore_Linux_Plex_Backup.sh.
 - Fixed comment in config file for sending emails.