Merge pull request #29 from x1unix/dev

update README and travis

Author: x1unix

.travis.yml

@@ -5,7 +5,7 @@ go:
 
 branches:
   only:
-#    - master
+    - master
     - dev
 env:
   - GO111MODULE=on

README.md

@@ -1,7 +1,7 @@
 # Better Go Playground
 
 [![Build Status](https://travis-ci.org/x1unix/go-playground.svg?branch=master)](https://travis-ci.org/x1unix/go-playground) 
-[![Coverage Status](https://coveralls.io/repos/github/x1unix/go-playground/badge.svg?branch=master)](https://coveralls.io/github/x1unix/go-playground?branch=master)
+[![Coverage Status](https://coveralls.io/repos/github/x1unix/go-playground/badge.svg?branch=dev)](https://coveralls.io/github/x1unix/go-playground?branch=dev)
 [![Goreportcard](https://goreportcard.com/badge/github.com/x1unix/go-playground)](https://goreportcard.com/report/github.com/x1unix/go-playground)
 
 Improved Go Playground powered by Monaco Editor and React