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

hantsy/code-challenges is built on the following main stack:

• Jest – Javascript Testing Framework
• PHP – Languages
• Java – Languages
• Golang – Languages
• Node.js – Frameworks (Full Stack)
• Scala – Languages
• C# – Languages
• JavaScript – Languages
• Visual Studio – Integrated Development Environment
• TypeScript – Languages
• PHPUnit – Testing Frameworks
• JUnit – Testing Frameworks
• Mockito – Testing Frameworks
• ESLint – Code Review
• Kotlin – Languages
• ScalaTest – Testing Frameworks
• nodemon – node.js Application Monitoring
• Prettier – Code Review
• Testify – Go Testing
• GitHub Actions – Continuous Integration
• ts-mockito – Testing Frameworks

Full tech stack here

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

Get the code:

## Tech Stack
hantsy/code-challenges is built on the following main stack:

- [Jest](http://facebook.github.io/jest/) – Javascript Testing Framework
- [PHP](http://www.php.net/) – Languages
- [Java](https://www.java.com) – Languages
- [Golang](http://golang.org/) – Languages
- [Node.js](http://nodejs.org/) – Frameworks (Full Stack)
- [Scala](http://www.scala-lang.org/) – Languages
- [C#](http://csharp.net) – Languages
- [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript) – Languages
- [Visual Studio](http://msdn.microsoft.com/en-us/vstudio/aa718325.aspx) – Integrated Development Environment
- [TypeScript](http://www.typescriptlang.org) – Languages
- [PHPUnit](https://phpunit.de/) – Testing Frameworks
- [JUnit](http://junit.org/) – Testing Frameworks
- [Mockito](https://site.mockito.org/) – Testing Frameworks
- [ESLint](http://eslint.org/) – Code Review
- [Kotlin](https://kotlinlang.org/) – Languages
- [ScalaTest](http://www.scalatest.org) – Testing Frameworks
- [nodemon](http://nodemon.io/) – node.js Application Monitoring
- [Prettier](https://prettier.io/) – Code Review
- [Testify](https://github.com/stretchr/testify) – Go Testing
- [GitHub Actions](https://github.com/features/actions) – Continuous Integration
- [ts-mockito](https://github.com/NagRock/ts-mockito) – Testing Frameworks

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

---

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

Tech Stack

hantsy/code-challenges is built on the following main stack:

• Jest – Javascript Testing Framework
• PHP – Languages
• Java – Languages
• Golang – Languages
• Node.js – Frameworks (Full Stack)
• Scala – Languages
• C# – Languages
• JavaScript – Languages
• Visual Studio – Integrated Development Environment
• TypeScript – Languages
• PHPUnit – Testing Frameworks
• JUnit – Testing Frameworks
• Mockito – Testing Frameworks
• ESLint – Code Review
• Kotlin – Languages
• ScalaTest – Testing Frameworks
• nodemon – node.js Application Monitoring
• Prettier – Code Review
• Testify – Go Testing
• GitHub Actions – Continuous Integration
• ts-mockito – Testing Frameworks

Full tech stack here

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

Get the code:

## Tech Stack
hantsy/code-challenges is built on the following main stack:

- <img width='25' height='25' src='https://img.stackshare.io/service/830/jest.png' alt='Jest'/> [Jest](http://facebook.github.io/jest/) – Javascript Testing Framework
- <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/995/K85ZWV2F.png' alt='Java'/> [Java](https://www.java.com) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1005/O6AczwfV_400x400.png' alt='Golang'/> [Golang](http://golang.org/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1011/n1JRsFeB_400x400.png' alt='Node.js'/> [Node.js](http://nodejs.org/) – Frameworks (Full Stack)
- <img width='25' height='25' src='https://img.stackshare.io/service/1012/scala.png' alt='Scala'/> [Scala](http://www.scala-lang.org/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/1015/1200px-C_Sharp_wordmark.svg.png' alt='C#'/> [C#](http://csharp.net) – Languages
- <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/1451/SR2hUhQN.png' alt='Visual Studio'/> [Visual Studio](http://msdn.microsoft.com/en-us/vstudio/aa718325.aspx) – Integrated Development Environment
- <img width='25' height='25' src='https://img.stackshare.io/service/1612/bynNY5dJ.jpg' alt='TypeScript'/> [TypeScript](http://www.typescriptlang.org) – Languages
- <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/2020/874086.png' alt='JUnit'/> [JUnit](http://junit.org/) – Testing Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/2021/4y634TJm_400x400.jpg' alt='Mockito'/> [Mockito](https://site.mockito.org/) – Testing Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/3337/Q4L7Jncy.jpg' alt='ESLint'/> [ESLint](http://eslint.org/) – Code Review
- <img width='25' height='25' src='https://img.stackshare.io/service/3750/pCfEzr6L.png' alt='Kotlin'/> [Kotlin](https://kotlinlang.org/) – Languages
- <img width='25' height='25' src='https://img.stackshare.io/service/4371/frame_apngframe0.png' alt='ScalaTest'/> [ScalaTest](http://www.scalatest.org) – Testing Frameworks
- <img width='25' height='25' src='https://img.stackshare.io/service/5577/preview.png' alt='nodemon'/> [nodemon](http://nodemon.io/) – node.js Application Monitoring
- <img width='25' height='25' src='https://img.stackshare.io/service/7035/default_66f265943abed56bcdbfca1c866a4261b1fbb063.jpg' alt='Prettier'/> [Prettier](https://prettier.io/) – Code Review
- <img width='25' height='25' src='https://img.stackshare.io/service/8695/stretchr.png' alt='Testify'/> [Testify](https://github.com/stretchr/testify) – Go Testing
- <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/40072/default_4d417d0c9458f265f42d8659972fa0e7d701f5c1.png' alt='ts-mockito'/> [ts-mockito](https://github.com/NagRock/ts-mockito) – Testing Frameworks

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