Update rules/Proj0039.md

Co-authored-by: Laura Kramer <[email protected]>

Author: Corniel

rules/Proj0039.md

@@ -32,7 +32,7 @@ Although analyser rule builders – like us – try their best to come up with r
 
 In the end, warnings are an indication of technical debt, and should be handled a such: with care. Using tools like Qodana and SonarQube can create reports on pull requests to reduce the introduction of new warnings (ideally to zero).
 
-On a regular basis the team working on the project should allocate time to address outstanding issues that should be fixed, or decide that a certain rule is not worth the effort for the project. The goal should be to get as close to zero warnings as possible.
+On a regular basis, the team working on the project should allocate time to address outstanding issues that should be fixed, or decide that a certain rule is not worth the effort for the project. The goal should be to get as close to zero warnings as possible.
 
 ## Non-compliant
 ``` xml