Failure to upload build for new board

[ghost]

First off, thanks for this, it's really showing off the power of the tools you've used in an elegant way!

I'm fork #1 so I was bound to find some small issue ;) My build failed to push to the repo the first time out, giving me the error:

Untracked files:
  (use "git add <file>..." to include in what will be committed)
	Firmware/Builds/STM32F103RET6_creality/

nothing added to commit but untracked files present (use "git add" to track)
Error: Process completed with exit code 1.

https://github.com/xcasxcursex/Ender3v2Marlin/runs/1503176605?check_suite_focus=true

A quick search led me to simply add a line to the push job:

git add .
https://github.com/xcasxcursex/Ender3v2Marlin/commit/a7f7a2cbc5e2221ba18353286b95a4db7e94cdff

This seems to have fixed things but I'm not proficient enough to know if this is the 'right' way to fix it, so instead of a PR, I've filed this issue.
Edit: And now that I think of it, I've filed it in the wrong repo, haven't I?