Restructure and rename files

Author: martin-strecker-sonarsource

rules/S6673/how-to-fix.adoc

@@ -4,8 +4,6 @@ include::../description.adoc[]
 
 include::../why-dotnet.adoc[]
 
-include::../impact.adoc[]
-
-include::../how-to-fix.adoc[]
+include::../how-dotnet.adoc[]
 
 include::../resources-dotnet.adoc[]