Add 🦄 Shades of Purple Theme + Scripts + Docs

[ahmadawais]

With this PR I intend to add my VSCode theme 🦄 Shades of Purple to prism-react-render.

• 🦄 NEW: Shades of Purple Theme for Prism

I converted the theme and manually edited it to make sure it looks good. Here's demo of how it looks:

• 🐛 FIX: Prettier devDependency required to Commit with Husky

Since there is no contribution guide I had to figure things out on the go and found out that Husky need prettier which was not installed/required as a devDependency in the project. Assumption of having it installed globally is a bit much IMO. So, I added it in there.

• 📖 DOC: Generate a Prism Theme from VSCode

I also wrote basic documentation for someone looking to generate a theme like I did. Thanks for working out the prism theme generator.

• 👌 IMPROVE: Start npm script for theme generation

Added an npm script to easily run the theme generator.

Looking forward, peace! ✌️

[kitten]

Cheers! These are some awesome docs contributions and I really like the addition of this theme ✨

[kitten]

Thanks for adding this! It missing was simply an oversight 😅

[ahmadawais]

That's what I thought! 👌

[ahmadawais]

@kitten glad you liked it. I hope you try out the VSCode theme as well. I hear it's pretty rad. 💜😎

Thanks for the merge!