Notebooks edit link

[patridge]

(Also showing only the applicable edit links rather than disabling the link part.)

[patridge]

Looks like Learn-relative links are currently broken. But if it's indicative of a new URL format, we need to make the system handle these links as well.

Example: /learn/modules/count-moon-rocks-python-nasa/notebooks/3-read-text-file.ipynb

If we assume it's hosted in the same repo, we can probably find the difference between this and the page's source URL to find the best guess at a source URL for the notebook.

Example:

• Page: https://docs.microsoft.com/en-us/learn/modules/count-moon-rocks-python-nasa/3-read-text-file
• YAML (live): https://github.com/MicrosoftDocs/learn-pr/blob/live/learn-pr/student-evangelism/count-moon-rocks-python-nasa/3-read-text-file.yml
• YAML (edit link): https://github.com/MicrosoftDocs/learn-pr/blob/master/learn-pr/student-evangelism/count-moon-rocks-python-nasa/3-read-text-file.yml
• Notebook: /learn/modules/count-moon-rocks-python-nasa/notebooks/3-read-text-file.ipynb
• Notebook (edit link): https://github.com/MicrosoftDocs/learn-pr/blob/master/learn-pr/student-evangelism/count-moon-rocks-python-nasa/notebooks/3-read-text-file.ipynb

[patridge]

Since I was already handling absolute URLs, I just made any relative URLs absolute to Learn before doing the GitHub URL manipulations.

[patridge]

{Fixes #60}