Only deploy from one job (#12)

LegNeato · web-flow · commit a0faf887055a · 2018-09-13T15:51:53.000-07:00
We will deploy when the stable job triggered from `source` goes green
diff --git a/.travis.yml b/.travis.yml
@@ -33,5 +33,6 @@ deploy:
   github_token: $DEPLOY_TOKEN
   on:
     branch: source
+    rust: stable
   target_branch: master
   local_dir: _book/
