Merge pull request #12 from go-xorm/lunny/add_ci

Add ci and improve README

Author: lunny

README.md

@@ -1,6 +1,7 @@
 # SQL builder
 
-[![CircleCI](https://circleci.com/gh/go-xorm/builder/tree/master.svg?style=svg)](https://circleci.com/gh/go-xorm/builder/tree/master)
+[![CircleCI](https://circleci.com/gh/go-xorm/builder/tree/master.svg?style=svg)](https://circleci.com/gh/go-xorm/builder/tree/master)  [![codecov](https://codecov.io/gh/go-xorm/builder/branch/master/graph/badge.svg)](https://codecov.io/gh/go-xorm/builder)
+[![](https://goreportcard.com/badge/github.com/go-xorm/builder)](https://goreportcard.com/report/github.com/go-xorm/builder)
 
 Package builder is a lightweight and fast SQL builder for Go and XORM.
 

circle.yml

@@ -9,4 +9,6 @@ test:
   override:
     # './...' is a relative pattern which means all subdirectories
     - golint ./...
-    - go test -v -race
+    - go test -v -race -coverprofile=coverage.txt -covermode=atomic
+  post:
+    - bash <(curl -s https://codecov.io/bash)