add known users

README.md

@@ -166,3 +166,5 @@ The project is licensed under the [Apache 2 license](https://github.com/ctripcor
 ![涂鸦智能](https://github.com/ctripcorp/apollo/blob/master/doc/images/known-users/tuya_logo.png) 
 ![立创商城](https://github.com/ctripcorp/apollo/blob/master/doc/images/known-users/szlcsc.jpg) 
 ![乐赚金服](https://github.com/ctripcorp/apollo/blob/master/doc/images/known-users/hairongyi.png) 
+![开心汽车](https://github.com/ctripcorp/apollo/blob/master/doc/images/known-users/kxqc.png) 
+![乐赚金服](https://github.com/ctripcorp/apollo/blob/master/doc/images/known-users/ppcredit.png)