Release 0.0.20

This release includes many improvements, both in terms of performance
and features.

For an overview of the what's included in this release, please see:
https://github.com/check-spelling/check-spelling/releases/tag/v0.0.20

A number of features rely on a refreshed workflow, so, please consider
reviewing a current one, such as the one available at:
https://github.com/check-spelling/spell-check-this/blob/7adef917a33f6b1032e7f8c617b5e71cefd6f101/.github/workflows/spelling.yml
or
https://github.com/check-spelling/spell-check-this/blob/7adef917a33f6b1032e7f8c617b5e71cefd6f101~/.github/workflows/spelling.yml

It should generally be available from:
https://github.com/check-spelling/spell-check-this/blob/main/.github/workflows/spelling.yml
There's a chicken-and-egg issue here, in that the workflow relies on
features in this release, so it won't be updated to point to a current
version until shortly after this release.

This is the first release where I intend to use the ability to report
on the status of a release after it is made.

For more information, see:
https://github.com/check-spelling/check-spelling/wiki/Feature:-Security-Polling

version

@@ -1 +1 @@
-0.0.19
+0.0.20