After one too many pipeline failures due to old spell-checking
mistakes, I decided to own up to my stuff and spell check
everything. I actually ran:

     codespell --interactive 3 --write-changes *

And dealt with *almost* all the errors, except stuff in old/ which
I'll remove shortly.

When an error comes up now, it is new and should be fixed.

howto/gitlab.md

@@ -1446,7 +1446,7 @@ is interesting as well.
 
 ### Migration tools
 
-ahf implemented the gitlab using his own home-made tools that talk to
+ahf implemented the GitLab migration using his own home-made tools that talk to
 the GitLab and Trac API. but there's also [tracboat](https://github.com/tracboat/tracboat) which is
 designed to migrate from trac to GitLab.