Update .travis.yml

.travis.yml

@@ -11,7 +11,7 @@ before_install:
 before_script:
   
 script:
-  - git diff master.. -U0 README.md | grep -Pos "(?<=^\+).*" >> temp.md
+  - git diff master.. -U0 README.md | grep -Pos "(?<=^\+).*" >> temp.md || (exit 0)
   - node test.js temp.md
   - awesome_bot temp.md --allow-redirect
   - danger --verbose