Update documentation.yml

(cherry picked from commit 665fb32bbfba9f357a03880a5bf50676ae29af12)

# Conflicts:
#	.github/workflows/documentation.yml

Author: stephencelis

.github/workflows/ci.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      
   pull_request:
     branches:
       - '*'