Update appveyor.yml

Author: unitycoder

appveyor.yml

@@ -2,6 +2,8 @@ version: 1.0.{build}
 skip_tags: true
 image: Visual Studio 2017
 configuration: Release
+only_commits:
+  message: /#build/
 build:
   verbosity: minimal
 after_build:
@@ -13,4 +15,4 @@ deploy:
 - provider: GitHub
   auth_token:
     secure: XUgG0RFw9cyw0BUHekUQp4w29rJ/NSCXaiNhxmUGqXJ6KJxOvgtlDDXh/i3I33fsggGEuB67sA9xxfNd5/C8r9S+dsoVYVcL8alZNN5S/Xs=
-  artifact: deploy
+  artifact: deploy