Merge pull request #112 from imrenagi/store/imrenagi-mysql

Add link to new implementation of token and client store for mysql db

Author: LyricTian

README.md

@@ -165,6 +165,7 @@ if !ok || !token.Valid {
 * [Redis](https://github.com/go-oauth2/redis)
 * [MongoDB](https://github.com/go-oauth2/mongo)
 * [MySQL](https://github.com/go-oauth2/mysql)
+* [MySQL (Provides both client and token store)](https://github.com/imrenagi/go-oauth2-mysql) 
 * [PostgreSQL](https://github.com/vgarvardt/go-oauth2-pg)
 * [DynamoDB](https://github.com/contamobi/go-oauth2-dynamodb)
 * [XORM](https://github.com/techknowlogick/go-oauth2-xorm)