Update description

Author: oreshinya

README.md

@@ -2,7 +2,7 @@
 
 [![Latest release](http://img.shields.io/github/release/Bucketchain/purescript-bucketchain-simple-api.svg)](https://github.com/Bucketchain/purescript-bucketchain-simple-api/releases)
 
-A simple API middleware of [Bucketchain](https://github.com/Bucketchain/purescript-bucketchain).
+A simple RPC style API middleware of [Bucketchain](https://github.com/Bucketchain/purescript-bucketchain).
 
 ## Installation
 

bower.json

@@ -5,7 +5,7 @@
   "authors": [
     "Shinya Takahashi <s.takahashi313@gmail.com>"
   ],
-  "description": "A simple API middleware of Bucketchain.",
+  "description": "A simple RPC style API middleware of Bucketchain.",
   "keywords": [
     "purescript",
     "webserver",