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

netguycode/wordpress-base is built on the following main stack:

• PHP – Languages
• Docker – Virtual Machine Platforms & Containers
• GitHub Actions – Continuous Integration
• PhpSpec – Testing Frameworks
• Alpine Linux – Operating Systems
• Ghost – Self-Hosted Blogging / CMS
• Shell – Shells

Full tech stack here

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

Get the code:

## Tech Stack
netguycode/wordpress-base is built on the following main stack:

- [PHP](http://www.php.net/) – Languages
- [Docker](https://www.docker.com/) – Virtual Machine Platforms & Containers
- [GitHub Actions](https://github.com/features/actions) – Continuous Integration
- [PhpSpec](http://www.phpspec.net/en/latest/) – Testing Frameworks
- [Alpine Linux](https://www.alpinelinux.org/) – Operating Systems
- [Ghost](https://ghost.org) – Self-Hosted Blogging / CMS
- [Shell](https://en.wikipedia.org/wiki/Shell_script) – Shells

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

---

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

Tech Stack

netguycode/wordpress-base is built on the following main stack:

• PHP – Languages
• Docker – Virtual Machine Platforms & Containers
• GitHub Actions – Continuous Integration
• PhpSpec – Testing Frameworks
• Alpine Linux – Operating Systems
• Ghost – Self-Hosted Blogging / CMS
• Shell – Shells

Full tech stack here

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

Get the code:

## Tech Stack
netguycode/wordpress-base is built on the following main stack:

- <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/586/n4u37v9t_400x400.png' alt='Docker'/> [Docker](https://www.docker.com/) – Virtual Machine Platforms & Containers
- <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/3502/6b9dfb07681dee602dbdf75d9393f07c_400x400.png' alt='PhpSpec'/> [PhpSpec](http://www.phpspec.net/en/latest/) – Testing Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/6429/alpine_linux.png' alt='Alpine Linux'/> [Alpine Linux](https://www.alpinelinux.org/) – Operating Systems
- <img width='25' height='25' src='https://img.stackshare.io/service/1228/XRKixLnT_400x400.png' alt='Ghost'/> [Ghost](https://ghost.org) – Self-Hosted Blogging / CMS
- <img width='25' height='25' src='https://img.stackshare.io/service/4631/default_c2062d40130562bdc836c13dbca02d318205a962.png' alt='Shell'/> [Shell](https://en.wikipedia.org/wiki/Shell_script) – Shells

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