Update LICENSE badge

Author: moogle19

README.md

@@ -1,4 +1,4 @@
-# dbf ![GitHub](https://img.shields.io/github/license/mashape/apistatus.svg) [![GoDoc](https://godoc.org/github.com/moogle19/dbf?status.svg)](https://godoc.org/github.com/moogle19/dbf) [![Go Report Card](https://goreportcard.com/badge/moogle19/dbf)](https://goreportcard.com/report/moogle19/dbf) [![codebeat badge](https://codebeat.co/badges/ac41cf5d-87da-4cd3-bf58-29bbcced0fef)](https://codebeat.co/projects/github-com-moogle19-dbf-master)
+# dbf [![GitHub license](https://img.shields.io/github/license/moogle19/dbf.svg)](https://github.com/moogle19/dbf/blob/master/LICENSE) [![GoDoc](https://godoc.org/github.com/moogle19/dbf?status.svg)](https://godoc.org/github.com/moogle19/dbf) [![Go Report Card](https://goreportcard.com/badge/moogle19/dbf)](https://goreportcard.com/report/moogle19/dbf) [![codebeat badge](https://codebeat.co/badges/ac41cf5d-87da-4cd3-bf58-29bbcced0fef)](https://codebeat.co/projects/github-com-moogle19-dbf-master)
 
 A pure Go library for reading [dBase/xBase](http://en.wikipedia.org/wiki/DBase#File_formats) database files