Add Syntax highlighting

Discussion

When I write code, most markdowns allow for syntax highlighting depending on the language if I put it next to three backticks. Doing the following: ``` ```javascript ``` At the start of my markdown code block will highlight my code with javascript highlighting. [For example](https://ethereum.stackexchange.com/questions/112946/how-to-get-chainid-network-name-network-id-etc-in-hardhat/112947#112947)