[Docs] HTTP => HTTPS

[Schweinepriester]

Skipping the redirect HTTP => HTTPS this way 0:-)

[codecov]

Codecov Report

Merging #823 (61554a0) into master (309b040) will not change coverage.
The diff coverage is n/a.

❗ Current head 61554a0 differs from pull request most recent head d143cba. Consider uploading reports for the commit d143cba to get more accurate results

@@           Coverage Diff           @@
##           master     #823   +/-   ##
=======================================
  Coverage   99.22%   99.22%           
=======================================
  Files          98       98           
  Lines        1417     1417           
  Branches      477      477           
=======================================
  Hits         1406     1406           
  Misses         11       11           

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[ljharb]

There's also a bunch of http: links in docs/, those should be updated as well

[Schweinepriester]

Should have catched them all.

Note regarding http://cita.disability.uiuc.edu/html-best-practices/auto/onchange.php:
It's not available anymore it seems and while removing subdomains eventually led to https://www.disability.illinois.edu/ I couldn't find the content, therefore I took the most recent link from the archive: https://web.archive.org/web/20191207202425/http://cita.disability.uiuc.edu/html-best-practices/auto/onchange.php

Feel free to adjust of course :)

[ljharb]

Thank you, using the archive.org link is absolutely the right approach.