Adding changelog section names

Author: dorian-krefft-dt

CHANGELOG.md

@@ -2,10 +2,15 @@
 
 ## [Unreleased]
 
+### Bug fixes
+
 - #7: Fixing the
   `ClassCastException: PsiPlainTextFileImpl cannot be cast to class pl.thedeem.intellij.dql.DQLFile`
   error that occurred when injecting DQL into other types of files like Markdown (DQL blocks) or Java
   (`/* language=DQL */` injections).
+
+### Other
+
 - Improving error handling for Dynatrace REST API calls. The user will now see more details for errors like an invalid
   url or an unknown HTML response. Errors will now also be logged, which will be helpful when supporting users