How to get access to roll20 github to propose updates for character sheet

Good morning/afternoon, I recently started to create my own character sheets or take existing ones to fix some bugs/ update them.  I would like to know what is the process to gain the access to roll20 github repos to be able to push my changes?

There's a page on the wiki with detail on how github and roll20 work together. I also write a post for first time uploads, which gives a step-by-step process if you're on windows. Note that there's no point doing this until you are ready to upload your sheet.&nbsp; <a href="https://app.roll20.net/forum/permalink/8845549/" rel="nofollow">https://app.roll20.net/forum/permalink/8845549/</a>