docs [improvement]: improve readability of code blocks

[NilsJacobsen]

Problem: Code Blocks are not pushing to read

We have a lot of code blocks in the docs already. The readability is not good. This could lead to a bad funnel. Or people just copying not reading and in the end asking in discord.

Proposal: Add a syntax Highlighter

We need to convert the code snippet into html. I would say this is not crazy urgent, so I will work on it when there is nothing more urgent.