Dummy PR to test link checker

[chrisb13]

Following up Davide's suggestion
#17 (comment)

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DO NOT MERGE

[chrisb13]

Thanks for the suggestion of testing the link checker @atteggiani.
Looks like it gets further now. So does that mean it's working?

It's reporting 17 errors, I'm not sure I agree with some of them, e.g.

https://www.marshallward.org/mom6workshop/internals.html#/mom6-directory-tree | Cannot find fragment: Fragment not found in document.

And others I don't really understand, e.g.

[ERROR] error: | Error building URL for "/AOMSS_Lecture_Notes/" (Attribute: Some("href")): Cannot convert path '/AOMSS_Lecture_Notes/' to a URI: To resolve root-relative links in local files, provide a root dir

[atteggiani]

There are some issues, but for now I don't have time to look into that.
Please disregard the errors if you think the links work fine.