update readme

README.md

@@ -1,17 +1,33 @@
 # main-fns
 
-[![MIT License](https://img.shields.io/apm/l/atomic-design-ui.svg?)](https://github.com/tterb/atomic-design-ui/blob/master/LICENSEs)
- [![Version](https://img.shields.io/npm/v/main-fns.svg?style=flat&label=version)](https://www.npmjs.com/package/main-fns) [![Build Status](https://img.shields.io/github/workflow/status/nabby27/main-fns/Test%20lint%20and%20deploy/main?label=test)](https://github.com/nabby27/main-fns/workflows/test/badge.svg) [![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=M57SG9J5RQ6DJ&currency_code=EUR&source=url)  
-
+[![Version](https://img.shields.io/npm/v/main-fns.svg?style=flat&label=version)](https://www.npmjs.com/package/main-fns)
+[![Build Status](https://img.shields.io/github/workflow/status/nabby27/main-fns/Test%20lint%20and%20deploy/main?label=test)](https://github.com/nabby27/main-fns/actions?query=workflow%3A%22Test+lint+and+deploy%22)
+[![MIT License](https://img.shields.io/apm/l/atomic-design-ui.svg?)](https://github.com/nabby27/main-fns/blob/main/LICENSE)
+[![PayPal](https://img.shields.io/badge/paypal-donate-yellow.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=M57SG9J5RQ6DJ&currency_code=EUR&source=url)  
 
 Javascript utility library created with TypeScript
 
 Documentation on [https://nabby27.github.io/main-fns/](https://nabby27.github.io/main-fns/)
 
-## Install
+## Why main-fns?
+It is quite tedious to be aware of all the dependencies and keep their changes, the idea of main-fns is that you only worry about this library. Main-fns will have all the main functions that are used in a common way such as the handling of dates, texts, arrays, numbers... Internally main-fns will use the most current libraries of the moment and will be up to date for you.
+
+## Installation
 
-Install with npm:
+Using npm:
 
 ```sh
 npm i main-fns
-```
+```
+
+## Some examples
+
+```ts
+import { addDays, dateToString } from 'main-fns'
+
+addDays(1, new Date(2014, 1, 11)) // '2014-02-12'
+
+dateToString(new Date(2014, 1, 11), 'yyyy-MM-dd') // '2014-02-11'
+```
+
+Feel free to investigate the [main-fns API](https://nabby27.github.io/main-fns/), it is structured by modules and created using JSDoc.