Update README

Author: sullrich

README.md

@@ -1,6 +1,8 @@
 # golang-gin-lua
 
-## Testing
+## This is a simple golang webserver using gin that invokes lua scripts.
+
+### Testing
 ```
 curl -u user1:password1 -X POST http://localhost:8080/runLuaFile/test.lua -d '{"name":"John Doe"}'
 ```