Added README.md

Author: Progi1984

README.md

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+# Math
+
+[![Latest Stable Version](https://poser.pugx.org/phpoffice/math/v/stable.png)](https://packagist.org/packages/phpoffice/math)
+[![Coverage Status](https://coveralls.io/repos/github/PHPOffice/Math/badge.svg?branch=master)](https://coveralls.io/github/PHPOffice/Math?branch=master)
+[![Total Downloads](https://poser.pugx.org/phpoffice/math/downloads.png)](https://packagist.org/packages/phpoffice/math)
+[![License](https://poser.pugx.org/phpoffice/math/license.png)](https://packagist.org/packages/phpoffice/math)
+[![CI](https://github.com/PHPOffice/Math/actions/workflows/php.yml/badge.svg)](https://github.com/PHPOffice/Math/actions/workflows/php.yml)
+
+Math is a library written in pure PHP that provides a set of classes to manipulate different formula file formats, i.e. [MathML](https://en.wikipedia.org/wiki/MathML) and [Office MathML (OOML)](https://en.wikipedia.org/wiki/Office_Open_XML_file_formats#Office_MathML_(OMML)).
+
+Math is an open source project licensed under the terms of [MIT](https://github.com/PHPOffice/Math/blob/master/LICENCE). Math is aimed to be a high quality software product by incorporating [continuous integration and unit testing](https://github.com/PHPOffice/Math/actions/workflows/php.yml). You can learn more about Math by reading this Developers'Documentation and the [API Documentation](http://phpoffice.github.io/Math/docs/)
+
+If you have any questions, please ask on [StackOverFlow](https://stackoverflow.com/questions/tagged/phpoffice-math)
+
+Read more about Math:
+
+- [Features](#features)
+- [Requirements](#requirements)
+- [Installation](#installation)
+- [Contributing](#contributing)
+- [Developers' Documentation](https://phpoffice.github.io/Math/)
+
+## Features
+
+- Insert elements:
+
+    * Basic :
+
+        * Identifier : <math display="inline"><mi>a</mi></math>
+        * Operator : <math display="inline"><mo>+</mo></math>
+        * Numeric : <math display="inline"><mn>2</mn></math>
+
+    * Simple :
+    
+        * Fraction : <math display="inline"><mfrac><mi>a</mi><mn>3</mn></mfrac></math>
+        * Superscript : <math display="inline"><msup><mi>a</mi><mn>3</mn></msup></math>
+
+    * Architectural :
+
+        * Row
+        * Semantics
+
+- Support
+
+    * MathML
+    * OfficeMathML
+## Requirements
+
+Math requires the following:
+
+- PHP 7.1+
+- [XML Parser extension](http://www.php.net/manual/en/xml.installation.php)
+- [XMLWriter extension](http://php.net/manual/en/book.xmlwriter.php)
+
+## Installation
+
+Math is installed via [Composer](https://getcomposer.org/).
+To [add a dependency](https://getcomposer.org/doc/04-schema.md#package-links) to Math in your project, either
+
+Run the following to use the latest stable version
+```sh
+composer require phpoffice/math
+```
+or if you want the latest unreleased version
+```sh
+composer require phpoffice/math:dev-master
+```
+
+## Contributing
+
+We welcome everyone to contribute to PHPWord. Below are some of the things that you can do to contribute.
+
+- [Fork us](https://github.com/PHPOffice/Math/fork) and [request a pull](https://github.com/PHPOffice/Math/pulls) to the [master](https://github.com/PHPOffice/Math/tree/master) branch.
+- Submit [bug reports or feature requests](https://github.com/PHPOffice/Math/issues) to GitHub.
+- Follow [@PHPOffice](https://twitter.com/PHPOffice) on Twitter.

docs/index.md

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 Math is a library written in pure PHP that provides a set of classes to manipulate different formula file formats, i.e. [MathML](https://en.wikipedia.org/wiki/MathML) and [Office MathML (OOML)](https://en.wikipedia.org/wiki/Office_Open_XML_file_formats#Office_MathML_(OMML)).
 
-Math is an open source project licensed under the terms of [MIT](https://github.com/PHPOffice/PHPWord/blob/master/LICENCE). Math is aimed to be a high quality software product by incorporating [continuous integration and unit testing](https://github.com/PHPOffice/Math/actions/workflows/php.yml). You can learn more about Math by reading this Developers'Documentation and the [API Documentation](http://phpoffice.github.io/PHPWord/docs/develop/)
+Math is an open source project licensed under the terms of [MIT](https://github.com/PHPOffice/Math/blob/master/LICENCE). Math is aimed to be a high quality software product by incorporating [continuous integration and unit testing](https://github.com/PHPOffice/Math/actions/workflows/php.yml). You can learn more about Math by reading this Developers'Documentation and the [API Documentation](http://phpoffice.github.io/Math/docs/develop/)
 
 ## Features