update readme

README.md

@@ -2,9 +2,13 @@
 
 Convert string/values to Boolean in JavaScript.
 
-# Installing
+## Installing
 
-# Example
+```shell
+$ npm i booler.js --save
+```
+
+## Example
 
 ```js
 const booler = require('booler')
@@ -13,8 +17,17 @@ console.log(booler('f')) // return false
 console.log(booler('t')) // return true
 ```
 
-# Run Test
+## Run Test
 
 ```shell
 $ npm run test
 ```
+
+## Contribution
+
+if you any ideas or concepts, please kindly provide and support with us.
+
+### Author
+
+Name: <b>Sambo Chea</b> <br/>
+Email: sombochea@cubetiqs.com