This is one of those weird webhooks where the
download-python-bindings.md macro doesn't work, because the user
only needs the bindings to run the one-time Trello script to register
the webhook and that script can be run from anywhere and doesn't need
to be "hosted" anywhere.
This one is one of the most tedious to set up and get working.
We now also rely on the Trello scripts available as part of the
`python-zulip-api/zulip` API package to make the setup process
easier.
Update Email, Beanstalk, Hubot, JIRA, and Trello integrations
links.
The Hubot integrations section (/integrations#hubot-integrations)
was removed in an earlier redesign of /integrations. This commit
replaces the link with the hubot-scripts organization on
Github, which displays the comprehensive list of all integrations
available via Hubot.
Fixes#5875.