TASK RUNNERS NPM. Created 'npm run static:img:compressed' command.

static:img:compressed
This command minify the images with the extension jpg/jpeg, svg, png, gif.
It has some dependecies, requires npm packages:
- chalk: For add styles to the terminal messages
- compress-images: For minify the images
- pngquant-bin and gifsicle: Dependencies of compress-images package

Edited documentation files

README.md

@@ -8,8 +8,7 @@
 
 ### List of task runners:
 
--   [ ] Node
--   [ ] NPM
+-   [ ] [NPM packages and NODE scripts](https://github.com/beatrizsmerino/task-runners/tree/feature/task-runners-npm/task-runners-npm)
 -   [ ] Gulp
 -   [ ] Grunt
 -   [ ] Webpack

task-runners-npm/README.md

@@ -1,13 +1,41 @@
-# TASK RUNNERS. NPM SCRIPTS
+# TASK RUNNERS. NPM packages and NODE scripts
 
-![Image of npm](https://github.com/beatrizsmerino/task-runners/blob/develop/doc/assets/npm/cover-npm.svg)
+![Image of npm](https://github.com/beatrizsmerino/task-runners/blob/feature/task-runners-npm/doc/assets/task-runners-npm/task-runners-npm.svg)
 
 ## USE
 
-### Commands list
+**Commands list**
 
-#### TEST
+### Test
 
 ```
 npm run test
 ```
+
+### Compress images
+
+**Minify size images with extension: jpg/jpeg, svg, png, gif**
+
+Use:
+
+```
+npm run static:img:compressed
+```
+
+NPM Dependencies:
+
+| Name            | Badge                                                                                                    |
+| --------------- | -------------------------------------------------------------------------------------------------------- |
+| chalk           | [![npm version](https://badge.fury.io/js/chalk.svg)](https://badge.fury.io/js/chalk)                     |
+| compress-images | [![npm version](https://badge.fury.io/js/compress-images.svg)](https://badge.fury.io/js/compress-images) |
+| pngquant-bin    | [![npm version](https://badge.fury.io/js/pngquant-bin.svg)](https://badge.fury.io/js/pngquant-bin)       |
+| gifsicle        | [![npm version](https://badge.fury.io/js/gifsicle.svg)](https://badge.fury.io/js/gifsicle)               |
+
+Node script:
+
+-   [compress-images.js](https://github.com/beatrizsmerino/task-runners/blob/feature/task-runners-npm/task-runners-npm/static/bin/compress-images.js)
+
+## BIBLIOGRAFY
+
+-   [https://docs.npmjs.com/misc/scripts](https://docs.npmjs.com/misc/scripts)
+-   [https://github.com/semiromid/compress-images/](https://github.com/semiromid/compress-images/)