Implementing an automatic spellcheck GitHub action.

[kathryn-ods]

Overview

What does this pull request do?

Adds 3 files - the GitHub action file, the spellcheck configuration file and a list of allowed words not in the dictionary. I have also corrected some spelling errors which were flagged up by the spell checker.

How can a reviewer test or examine your changes?
Add in a spelling error

Who is best placed to review it?
@kd-ods

Closes #

Translations

• New or edited strings appearing as a result of this PR will be picked up for translation
• I've notified the translation coordinator of any new strings that will need
  translating. See the Handbook

Documentation & Release

• I've checked that the documentation builds without failing. See the Handbook
• I've thought about how and when this needs to be released. See the Handbook
• I've updated the changelog, if necessary. See the Handbook
• I've updated reference.rst to reflect any changes to schema structure or naming.
• I've updated the BODS validation specification if necessary. See the Handbook
• I've added or edited any other related documentation. See the Handbook

[kathryn-ods]

At the moment linkcheck is failing because https://www.icao.int/publications/Documents/9303_p3_cons_en.pdf and https://www.icao.int/publications/Documents/9303_p4_cons_en.pdf are down - I expect if we rerun the tests next week it'll work again

[kd-ods]

A couple of little things to consider, suggestion-wise.

A bigger thing: the edits to the reference.rst page break the internal links to those sections. You'll need to build the docs to see what I mean. So you'll need to find all the properties that link to them and use the ':externallinks:' parameter to set up a link with a hyphen. It's a bit of a palaver. (Feel free to revert your changes on that page. Better to break the style guide than the links!) If you do want to make the reference.rst edits, you'll also need to make the underline under 'Unspecified Record' longer.

And one final thing (sorry!) - is there any way of putting the .spellcheck.yml and .wordlist.txt files in the workflows directory? Just for tidiness' sake.

[kathryn-ods]

Thanks Kadie - have reverted the reference.rst page where links were broken and changed those specific words you highlighted.

I have moved wordlist.txt into the workflows folder but can't move spellcheck.yml without it breaking. It's got the . in front so it's a "hidden" file.

[kd-ods]

Thanks, Kathryn - this look great. And I can see the new check works on this PR