Update README.md

README.md

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 # Phaser 3 Universal LPC Character
+
+## (Under development)
 Character Spritesheet based on Universal-LPC-Spritesheet for Phaser 3.
 
 It is provided as `Phaser.GameObjects.Sprite`, `Phaser.Physics.Arcade.Sprite` and `Phaser.Physics.Matter.Sprite` GameObjects. Also the animators, input behaviors and the entire spritesheet character variations will be included as a TypeScript Interfaces and methods handling.
 
+## How to use
+
+``` bash
+# install dependencies
+npm i
+or
+yarn
+
+# start
+npm run dev
+or
+yarn dev
+
+# build
+npm run build
+or
+yarn build
+
+
+# generate characters spritesheet json map
+npm run generate-spritesheet-map
+or
+yarn generate-spritesheet-map
+```
+
 ### Licensing and Attribution (Credits)
 
 This is based in original [Universal LPC Spritesheet Character Generator](https://github.com/Gaurav0/Universal-LPC-Spritesheet-Character-Generator) and [sanderfrenken's LPC Spritesheet Character Generator](https://github.com/sanderfrenken/Universal-LPC-Spritesheet-Character-Generator) using the awesome [LPC](https://lpc.opengameart.org/) game art assets.