add a GitHub auth tip

[lilspad]

Changes in this pull request:

• Add a note in the "Configuring our site on PythonAnywhere" section in the "deploy" directory to:
  • Explain why password authentication might not work
  • Guide the user to use SSH instead

Notes:

• I normally follow the github docs to create a new SSH key, but the bash console required small syntax adjustment:

  • As pbcopy is not defined, use cat to display the key and copy manually instead

• I personally ran into this issue at this exact point in the tutorial, but it's possible that there is a more appropriate place to mention this, earlier in the tutorial.

Hopefully my explanation makes sense and helps anyone else who might be struggling to access their github from the command line. Please let me know if there's a better way to contribute this info!

[lilspad]

I just realised this is already an open issue (#1739) sorry! I'll leave this request open in case this might help temporarily, but feel free to close it if not :)

[dennybiasiolli]

@lilspad is this happening if the repo is set to "public" too? I tried the tutorial a couple of weeks ago and it didn't ask for username/password when cloning the repo. I will try again after creating a clean local virtual machine, to see if it's happening on localhost too

[lilspad]

@dennybiasiolli Ah, you're absolutely right! This is not an issue if the repo is set to public. Thank you!