Improve documentation

Link

https://supabase.com/blog/2022/03/31/supabase-edge-functions

Describe the problem

Links to https://deno.land/manual/tools/testing which results in a 404.

Describe the improvement

I think it should link to https://deno.land/manual/testing instead.

Additional context

Super exciting to see a partnership between Supabase and Demo Deploy

When running ./nodebb upgrade, the output should also append to logs/output.log just as it does for ./nodebb start. These logs can be viewed by running ./nodebb log.

Good for beginners, feel free to ask here for tips on getting started.

We should probably catch that and raise something else from Starlette itself 🤔

Originally posted by @Kludex in encode/starlette#1349 (comment)

Check comment for context.

A new version of pusher/pusher-http-php (6.x) has been released recently.
Currently there are supported only versions up to 5.x.

Current tools docs could be updated to reflect changelog entry regard rtm.start method deprecation for apps created after Nov 30th, 2021.

The page URLs

• https://slack.dev/python-slack-sdk/real_time_messaging.html

Requirements

Please read the [Contributing guidelines](https://github.com/slackapi/python-slack-sdk/