Update README.md

README.md

@@ -1,19 +1,25 @@
-# jscode-find-callee
+# jscode-find-callee [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/paulvollmer/jscode-find-callee/blob/master/LICENSE) [![npm version](https://img.shields.io/npm/v/jscode-find-callee.svg?style=flat)](https://www.npmjs.com/package/jscode-find-callee)
 
 This is a tool to find calls at javascript code.
 
+### Installation
+
+```
+npm install -g jscode-find-callee
+```
+
 ### Usage
 The following example will search for all `console` calls at the `fixtures/console_log_2.js` sourcecode.
 ```
-node bin/jscode-find-callee fixtures/console_log_2.js
+jscode-find-callee fixtures/console_log_2.js
 ```
 
 If you want to search for an other callee instead of `console` you can use the `--name` flag.
 ```
-node bin/jscode-find-callee --name logger fixtures/console_log_2.js
+jscode-find-callee --name logger fixtures/console_log_2.js
 ```
 
 It is also possible to search an entire directory.
 ```
-node bin/jscode-find-callee --name console fixtures
+jscode-find-callee --name console fixtures
 ```