docs: Add Mirai SizedBox Parser Docs

[divyanshub024]

No description provided.

[dakshvasudev]

Hey! I'd like to contribute, starting from this. Could you please assign this to me.

[divyanshub024]

Hey @dakshvasudev 👋🏻

Thank you for the initiative. I've assigned it to you.

Happy coding :)

[dakshvasudev]

Hey @divyanshub024 , I tried pushing my documentation PR, and got this:

Could you please look into it, or if this is something to be resolved on my end. Do let me know.

[divyanshub024]

@dakshvasudev You have to create a fork first and then submit a PR. You can read about the forks here https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/fork-a-repo