Update labeler.yml

.github/labeler.yml

@@ -1,8 +1,18 @@
 # https://github.com/actions/labeler#common-examples
 
-cutlass:
+examples:
   - examples/**
+  
+source:
+  - cmake/**
   - include/cutlass/**
+  
+documentation:
+  - docs/**
   - media/**
+  
+testing:
   - test/**
+  
+tooling:
   - tools/**