For updating github profile README,you can follow steam-box.yml in YouEclipse to create a Action in your README repo.Remember it's unsafe to use token with repo scope for updating the repo, steam-box update the profile repo using git command in Github Action instead of using github API.
GIST_ID: The ID portion from your gist url: https://gist.github.com/YouEclipse/9bc7025496e478f439b9cd43eba989a4.
Go to the repo Settings > Secrets
Add the following environment variables:
GH_TOKEN: The GitHub token generated above.
STEAM_API_KEY: The steam API key you created above.
STEAM_ID: The steam ID of your account.
If you want to show specific games,put the ids in environmet variable APP_ID:
like APP_ID=431960,730
you can get the id of a game from the store url: https://store.steampowered.com/app/730/CounterStrike_Global_Offensive/