Update README with the use of graphiql command

Author: aperezg

Makefile

@@ -4,8 +4,4 @@ LOCAL_BUILD := $(shell date +"%m-%d-%Y_%H_%M_%S")
 LOCAL_LDFLAGS = -s -X main.version=$(LOCAL_TAG) -X main.build=$(LOCAL_BUILD)
 
 build-cli:
-	go build -o bin/graphiql -ldflags "$(LOCAL_LDFLAGS)" cmd/graphiql/main.go
-
-install-cli: build-cli
-	mv bin/graphiql $(GOPATH)/bin
-	rm -rf bin
+	go build -o bin/graphiql -ldflags "$(LOCAL_LDFLAGS)" cmd/graphiql/main.go

README.md

@@ -7,12 +7,18 @@ An utility wrote on Go for using GraphiQL without need to use NPM.
 [Try the live demo.](http://graphql.org/swapi-graphql)
 
 ## Getting started
-To install the library, run:
+To install the library, run
 
 ```bash
 go get -u github.com/friendsofgo/graphiql
 ``` 
 
+To build graphi's CLI you must run
+```bash
+make build-cli
+```
+This will generate a binary in the project's bin directory called graphiql. You can then move this binary to anywhere in your `PATH`.
+
 ### Use GraphiQL on your own server
 If you've a GraphQL server on GO and you want to include the GraphiQL
 on it, it's as simple as this:
@@ -61,6 +67,9 @@ func main() {
 	http.ListenAndServe(":4040", nil)
 }
 
+## CLI
+
+
 ## 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.