Add some badges

Author: aperezg

README.md

@@ -1,5 +1,8 @@
 # Golang GraphiQL
+[![GitHub version](https://badge.fury.io/gh/friendsofgo%2Fgraphiql.svg)](https://badge.fury.io/gh/friendsofgo%2Fgraphiql)
 [![Build Status](https://travis-ci.org/friendsofgo/graphiql.svg?branch=master)](https://travis-ci.org/friendsofgo/graphiql)
+[![Go Report Card](https://goreportcard.com/badge/github.com/friendsofgo/graphiql)](https://goreportcard.com/report/github.com/friendsofgo/graphiql)
+[![CDNJS](https://img.shields.io/cdnjs/v/graphiql.svg)](https://cdnjs.com/libraries/graphiql)
 [![GoDoc](https://godoc.org/graphql.co/graphql?status.svg)](https://godoc.org/github.com/friendsofgo/graphiql)
 
 An utility wrote on Go for using GraphiQL without need to use NPM.
@@ -66,9 +69,33 @@ func main() {
 	http.Handle("/graphiql", graphiqlHandler)
 	http.ListenAndServe(":4040", nil)
 }
+```
 
 ## CLI
+Yo can use `graphiql` as command
+```bash
+$ graphiql --help
+usage: graphiql [-version] [OPTIONS]
+        graphiql is an standalone server to use Graphiql, based on https://github.com/graphql/graphiql
+
+  -endpoint string
+        Endpoint where are hosted your API, eg: http://localhost:8080/graphql (default "http://localhost:8080/graphql")
+  -graphiql
+        Show the js client of GraphiQL version
+  -port string
+        Port where will be launched the GraphiQL client (default "4040")
+  -version
+        Show the graphiql version information
+```
 
+And it'll launch a `GraphiQL` server
+```bash
+$ graphiql
+
+2018/11/24 17:10:36 GraphiQL run on http://localhost:4040...
+2018/11/24 17:10:36 GraphQL endpoint http://localhost:8080/graphql
+2018/11/24 17:10:36 Use (ctrl+c) for terminate the execution
+```
 
 ## Contribute
 [Contributions](https://github.com/friendsofgo/graphiql/issues?q=is%3Aissue+is%3Aopen) are more than welcome, if you are interested please fork this repo and send your Pull Request.