Adding Instructions to wiki for logging in with github ccount

[Ego-Matthisum]

Role

I play minecraft

Suggestion

Tell me how to log in

Benefit

People using githup accounts know how to log in

This suggestion is unique

• I have searched the issue tracker and did not find an issue describing my suggestion, especially not one that has been rejected.

You may use the editor below to elaborate further.

Please add a wiki entry for the people who have minecraft linked to their github-account

Explenation of the issue and work arounds can be found here
https://github.com/MultiMC/Launcher/issues/5133

[phit]

thanks, our wiki accepts contributions here btw https://github.com/MultiMC/wiki

[phit]

this also happens when you use, the now default for new accounts, login via email code

log shows this

 1019.421 D DeviceFlow::onVerificationReceived: Emitting closeBrowser()
 1019.421 W DeviceFlow::onVerificationReceived: Verification failed: QMap(("correlation_id", "xxxx")("error", "invalid_grant")("error_codes", "")("error_description", "AADSTS70000: The user could not be authenticated or user interaction is required. The user must sign in again and if needed grant the client application access to the requested scope. Trace ID: xxxx Correlation ID: xxxx Timestamp: 2023-12-08 13:46:20Z")("error_uri", "https://login.microsoftonline.com/error?code=70000")("timestamp", "2023-12-08 13:46:20Z")("trace_id", "xxxx"))
 1019.421 C Task "MSAInteractive(0x1d6c230)" failed:  "Autoryzacja użytkownika Microsoft nie powiodła się."
 1162.133 W QCoreApplication::postEvent: Unexpected null receiver

[Ego-Matthisum]

i have i have added documentation for the original problem (see pr wiki#28)