Correct reference to changelog

Documentation/Settings.cfg

@@ -50,7 +50,7 @@ t3viewhelper   = https://docs.typo3.org/other/typo3/view-helper-reference/10.4/e
 
 # TYPO3 system extensions
 # ext_adminpanel     = https://docs.typo3.org/c/typo3/cms-adminpanel/main/en-us/
-ext_core           = https://docs.typo3.org/c/typo3/cms-core/11.5/en-us/
+ext_core           = https://docs.typo3.org/c/typo3/cms-core/main/en-us/
 ext_dashboard      = https://docs.typo3.org/c/typo3/cms-dashboard/10.4/en-us/
 # ext_felogin        = https://docs.typo3.org/c/typo3/cms-felogin/main/en-us/
 ext_form           = https://docs.typo3.org/c/typo3/cms-form/10.4/en-us/