Create tech stack docs (techstack.yml and techstack.md)

[stack-file]

Adding tech stack documentation to allow anyone to easily see what is being used in this repo without digging through config files. Two files are being added: techstack.yml and techstack.md. techstack.yml contains data on all the technologies being used in this repo. techstack.md is a visualization of the YML file and displays the tech stack data in a pretty Markdown file.

💡 Protip: techstack.md contains a comment at the top of the file that the following README snippet (with and without the logos) at the top of the file as a comment:

<--- Readme.md Snippet without images Start --->

Tech Stack

iGore/symfony-demo is built on the following main stack:

• JavaScript – Languages
• PHP – Languages
• Bootstrap – Front-End Frameworks
• Bootswatch – Bootstrap Tools
• Sass – CSS Pre-processors / Extensions
• Symfony – Frameworks (Full Stack)
• jQuery – Javascript UI Libraries
• migra – Database Tools
• GitHub Actions – Continuous Integration
• PHPUnit – Testing Frameworks
• Webpack – JS Build Tools / JS Task Runners
• Yarn – Front End Package Manager
• highlight.js – Text Editor
• Font Awesome – Fonts

Full tech stack here

<--- Readme.md Snippet without images End --->

Get the code:

## Tech Stack
iGore/symfony-demo is built on the following main stack:

- [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript) – Languages
- [PHP](http://www.php.net/) – Languages
- [Bootstrap](http://getbootstrap.com/) – Front-End Frameworks
- [Bootswatch](http://bootswatch.com/) – Bootstrap Tools
- [Sass](http://sass-lang.com/) – CSS Pre-processors / Extensions
- [Symfony](http://symfony.com/) – Frameworks (Full Stack)
- [jQuery](http://jquery.com/) – Javascript UI Libraries
- [migra](https://migra.djrobstep.com/) – Database Tools
- [GitHub Actions](https://github.com/features/actions) – Continuous Integration
- [PHPUnit](https://phpunit.de/) – Testing Frameworks
- [Webpack](http://webpack.js.org) – JS Build Tools / JS Task Runners
- [Yarn](https://yarnpkg.com/) – Front End Package Manager
- [highlight.js](https://highlightjs.org/) – Text Editor
- [Font Awesome](https://fontawesome.com/) – Fonts

Full tech stack [here](/techstack.md)

---

<--- Readme.md Snippet with images Start --->

Tech Stack

iGore/symfony-demo is built on the following main stack:

• JavaScript – Languages
• PHP – Languages
• Bootstrap – Front-End Frameworks
• Bootswatch – Bootstrap Tools
• Sass – CSS Pre-processors / Extensions
• Symfony – Frameworks (Full Stack)
• jQuery – Javascript UI Libraries
• migra – Database Tools
• GitHub Actions – Continuous Integration
• PHPUnit – Testing Frameworks
• Webpack – JS Build Tools / JS Task Runners
• Yarn – Front End Package Manager
• highlight.js – Text Editor
• Font Awesome – Fonts

Full tech stack here

<--- Readme.md Snippet with images End --->

Get the code:

## Tech Stack
iGore/symfony-demo is built on the following main stack:

- <img width='25' height='25' src='https://img.stackshare.io/service/1209/javascript.jpeg' alt='JavaScript'/> [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/991/hwUcGZ41_400x400.jpg' alt='PHP'/> [PHP](http://www.php.net/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1101/C9QJ7V3X.png' alt='Bootstrap'/> [Bootstrap](http://getbootstrap.com/) – Front-End Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/5227/n6FsWiMQ.png' alt='Bootswatch'/> [Bootswatch](http://bootswatch.com/) – Bootstrap Tools
- <img width='25' height='25' src='https://img.stackshare.io/service/1171/jCR2zNJV.png' alt='Sass'/> [Sass](http://sass-lang.com/) – CSS Pre-processors / Extensions
- <img width='25' height='25' src='https://img.stackshare.io/service/1197/logosf_positif_03_icon.png' alt='Symfony'/> [Symfony](http://symfony.com/) – Frameworks (Full Stack)
- <img width='25' height='25' src='https://img.stackshare.io/service/1021/lxEKmMnB_400x400.jpg' alt='jQuery'/> [jQuery](http://jquery.com/) – Javascript UI Libraries
- <img width='25' height='25' src='https://img.stackshare.io/no-img-open-source.png' alt='migra'/> [migra](https://migra.djrobstep.com/) – Database Tools
- <img width='25' height='25' src='https://img.stackshare.io/service/11563/actions.png' alt='GitHub Actions'/> [GitHub Actions](https://github.com/features/actions) – Continuous Integration
- <img width='25' height='25' src='https://img.stackshare.io/service/1616/1_WsEnddd5Y4EgEHsT054kUQ.jpeg' alt='PHPUnit'/> [PHPUnit](https://phpunit.de/) – Testing Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/1682/IMG_4636.PNG' alt='Webpack'/> [Webpack](http://webpack.js.org) – JS Build Tools / JS Task Runners
- <img width='25' height='25' src='https://img.stackshare.io/service/5848/44mC-kJ3.jpg' alt='Yarn'/> [Yarn](https://yarnpkg.com/) – Front End Package Manager
- <img width='25' height='25' src='https://img.stackshare.io/service/6888/c17e7d9688d86bd9f9506ec1fbd6d200_400x400.png' alt='highlight.js'/> [highlight.js](https://highlightjs.org/) – Text Editor
- <img width='25' height='25' src='https://img.stackshare.io/service/3244/1_Mr1Fy00XjPGNf1Kkp_hWtw_2x.png' alt='Font Awesome'/> [Font Awesome](https://fontawesome.com/) – Fonts

Full tech stack [here](/techstack.md)