Fix typo in template.yml

Follow up of soutaro#39. I picked up a typical typos using misspell and applied it. https://github.com/client9/misspell ```console % misspell -w . template.yml:31:10: corrected "probablly" to "probably" ```
koic · Apr 28, 2018 · 99326d7 · 99326d7
1 parent 2d7ccec
commit 99326d7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/template.yml b/template.yml
@@ -28,7 +28,7 @@ rules:
   - id: sample.exception
     pattern: Exception
     message: |
-      You probablly should use StandardError
+      You probably should use StandardError
 
       If you are trying to define error class, inherit that from StandardError.
     justification: