Create examples

Here's some examples we could create for ghapi without gh actions - show both Python and CLI (where appropriate) how-tos:

- Basic tutorial on finding operations, key concepts, etc
- Equivalent of some `gh` commands
- Create an issue
- Create a gist
- View a gist
- Download a release asset
- Fork and clone a repo
- Ping a webhook
- Run a workflow
- View an issue and reply/close with template response
- Search for an issue
- Discuss pagination
- Show issues/PRs you are assigned to; show those that aren't assigned
- Add text to a file in a repo
- Show all added or updated issues and PRs in last hours, except updates from user
- For a repo; for a user; for an org
- Show those without a reply for days
- Plot # forks and clones by day for last month
- Render markdown
- `fastrelease`

Here's some examples we could create for ghapi with gh actions (just show Python how-tos):

- Check PRs are in an acceptable format, and it not, add a PR reply explaining how to fix, and create a CI fail
- Multi-OS go build and release (copy over from hugo-mathjax)
- Use pip cache
- Lock stale issues/PRs
- [More examples](https://github.com/sdras/awesome-actions)