Add https://stackoverflow.com to ignore in linkcheck, and sort entries

Author: stevepiercy

docs/conf.py

@@ -93,10 +93,11 @@
     r"https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS/Errors#Identifying_the_issue",
     r"https://docs.cypress.io/guides/references/migration-guide#Migrating-to-Cypress-version-10-0",  # volto
     # Ignore unreliable sites
-    r"https://web.archive.org/",  # volto
-    r"https://www.youtube.com/playlist",  # volto, TODO remove after installing sphinxcontrib.youtube
     r"https://chromewebstore.google.com/detail/react-developer-tools/fmkadmapgofadopljbjfkapdkoienihi",  # TODO retest with latest Sphinx when upgrading theme. chromewebstore recently changed its URL and has "too many redirects".
     r"https://chromewebstore.google.com/detail/redux-devtools/lmhkpmbekcpmknklioeibfkpmmfibljd",  # TODO retest with latest Sphinx when upgrading theme. chromewebstore recently changed its URL and has "too many redirects".
+    r"https://stackoverflow.com",  # volto and documentation  # TODO retest with latest Sphinx.
+    r"https://web.archive.org/",  # volto
+    r"https://www.youtube.com/playlist",  # volto, TODO remove after installing sphinxcontrib.youtube
 ]
 linkcheck_anchors = True
 linkcheck_timeout = 10

docs/glossary.md

@@ -692,5 +692,6 @@ Nick
     [Nick](https://nickcms.org/) is a headless content management system {term}`CMS` built with {term}`Node.js`.
 
 predicate
+predicates
     In programming, a predicate is a test which returns `true` or `false`.
 ```