Patch: Travis and add badge

node_js version 6 doesn't work with the test command and I removed only master branch because I want it to be possible to build and test other branches as well.

Author: endormi

.travis.yml

@@ -1,10 +1,10 @@
 language: node_js
 
 node_js:
-  - 'node'
-  - '6'
-  - '8'
+  - 'node' # stable version
   - '10'
+  - '8'
+#- '6'
 
 cache:
   directories:
@@ -17,6 +17,3 @@ script:
   - npm run test && echo -e "\n\n\n"
 
 after_success: echo "Success"
-
-branches:
-  only: master

README.md

@@ -9,6 +9,9 @@
   <a href="https://www.npmjs.com/package/advanced-react-cli">
     <img src="https://img.shields.io/npm/dw/advanced-react-cli.svg" alt="downloads-perweek" />
   </a>
+  <a href="https://travis-ci.org/devisle/advanced-react-cli">
+    <img src="https://img.shields.io/travis/devisle/advanced-react-cli" alt="Travis-build" />
+  </a>
 </p>
 
 This is an npm package which aims to provide a better way to install a React starter application and third-party packages for your application through an intuitive CLI.