pestphp
Add docs for todo() method
The announcement of Pest 2 mentions the ->todo() method, but links to a section of the docs that doesn't exist.
Other pages in the docs seem to use #content-topic for links, connected to a ## topic. As such, I tried to match the link in the Pest 2 announcement, linking to #content-creating-todos: https://pestphp.com/docs/announcing-pest2
Check indicate a timeout on a license link that not changed in this pull request. Might have been a temporary issue, I get a normal result when I check it now: https://www.gnu.org/licenses/agpl-3.0.en.html
@owenvoke Anything I can adapt here to make this a good addition to the docs? Link checker failed, I remember it complained about a line in a file that wasn't touched in this PR - could be something that was temporary down? Not sure if I can manually trigger the check again.
Can you re-push the branch to re-run the CI? If not, I'll re-run it tomorrow morning.
