Update README.md

Author: monicamiyasato

README.md

@@ -4,7 +4,7 @@
 [![Apache 2](http://img.shields.io/badge/license-Apache%202-brightgreen.svg)](http://www.apache.org/licenses/LICENSE-2.0)
 
 ## Overview
-This library helps GraphQL developers build awesome APIPs with fine grain filtering support.
+This library helps GraphQL developers build awesome APIs with fine grain filtering support.
 
 ## Requirements
 * grahql-java (v13.x)