PR number for v8.23 added

CHANGELOG.txt

@@ -18,7 +18,7 @@ Bug fixes:
 - DietPi-Software | Resolved an issue where motionEye failed to build on Bullseye systems since piwheels currently have no wheel for the latest Pillow version.
 - DietPi-Software | frp: Resolved an issue where the frp client could not connect to the frp server, because of missing spaces around the equal sign for the token setting in /etc/frp/frpc.ini. Many thanks to @josemahj for reporting this issue: https://github.com/MichaIng/DietPi/issues/6647
 
-As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: https://github.com/MichaIng/DietPi/pull/ADDME
+As always, many smaller code performance and stability improvements, visual and spelling fixes have been done, too much to list all of them here. Check out all code changes of this release on GitHub: https://github.com/MichaIng/DietPi/pull/6693
 
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