Add intro.js

node_modules/intro.js/README.md

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+# Intro.js
+
+[![Build Status](https://travis-ci.org/usablica/intro.js.svg?branch=master)](https://travis-ci.org/usablica/intro.js)
+[![](https://data.jsdelivr.com/v1/package/npm/intro.js/badge)](https://www.jsdelivr.com/package/npm/intro.js)
+[![npm](https://img.shields.io/npm/dm/intro.js)](https://www.jsdelivr.com/package/npm/intro.js)
+
+> User Onboarding and Product Walkthrough Library
+
+<p align="center">
+  <a href="https://introjs.com">
+    <img src="https://raw.githubusercontent.com/usablica/intro.js/gh-pages/img/introjs-demo.png">
+  </a>
+</p>
+
+## Where to get
+You can obtain your local copy of Intro.js from:
+
+**1)** This GitHub repository, using ```git clone https://github.com/usablica/intro.js.git```
+
+**2)** Using yarn ```yarn add intro.js```
+
+**3)** Using npm ```npm install intro.js --save```
+
+**4)** Download it from CDN ([1](http://www.jsdelivr.com/projects/intro.js), [2](https://cdnjs.com/libraries/intro.js))
+
+## How to use
+Intro.js can be added to your site in three simple steps:
+
+**1)** Include `intro.js` and `introjs.css` (or the minified version for production) in your page. Use `introjs-rtl.min.css` for Right-to-Left language support.
+
+> CDN hosted files are available at [jsDelivr](http://www.jsdelivr.com/projects/intro.js) (click Show More) & [cdnjs](https://cdnjs.com/libraries/intro.js).
+
+**2)** Add `data-intro` and `data-step` to your HTML elements. To add hints you should use `data-hint` attribute.
+
+For example:
+
+```html
+<a href='http://google.com/' data-intro='Hello step one!'></a>
+````
+
+See all attributes [here](https://introjs.com/docs/intro/attributes/).
+
+**3)** Call this JavaScript function:
+```javascript
+introJs().start();
+````
+
+Optionally, pass one parameter to `introJs` function to limit the presentation section.
+
+**For example** `introJs(".introduction-farm").start();` runs the introduction only for elements with `class='introduction-farm'`.
+
+## Documentation
+
+Please visit [Documentation](http://introjs.com/docs).
+
+## Using with:
+
+Intro.js has many wrappers for different purposes. Please visit [Documentation](http://introjs.com/docs) for more info.
+
+## Build
+
+First you should install `nodejs` and `npm`, then first run this command: `npm install` to install all dependencies.
+
+Now you can run this command to minify all static resources:
+
+    npm run build
+
+## Contributors ✨
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="http://afshinm.name"><img src="https://avatars3.githubusercontent.com/u/314326?v=4" width="100px;" alt=""/><br /><sub><b>Afshin Mehrabani</b></sub></a><br /><a href="https://github.com/usablica/intro.js/commits?author=afshinm" title="Code">💻</a> <a href="https://github.com/usablica/intro.js/commits?author=afshinm" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://bozdoz.com"><img src="https://avatars0.githubusercontent.com/u/1410985?v=4" width="100px;" alt=""/><br /><sub><b>bozdoz</b></sub></a><br /><a href="https://github.com/usablica/intro.js/commits?author=bozdoz" title="Code">💻</a> <a href="https://github.com/usablica/intro.js/commits?author=bozdoz" title="Documentation">📖</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-enable -->
+<!-- prettier-ignore-end -->
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+## Support/Discussion
+- [Stackoverflow](http://stackoverflow.com/questions/tagged/intro.js)
+
+## License
+
+### Commercial license
+
+If you want to use Intro.js for a commercial application, theme or plugin the commercial license is the appropriate license. With this option, your source code is kept proprietary. Purchase a commercial license at [introjs.com](http://introjs.com/#commercial)
+
+### Open-source license
+
+GNU AGPLv3