Add outline

[jnichols0]

This PR adds the outline.scm file used by Tree-sitter to create an outline of source files and subsequently allow sticky scrolling in Zed.

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: James Nichols.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: James Nichols.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @jnichols0 on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[jnichols0]

@cla-bot check

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @jnichols0 on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[cla-bot]

We require contributors to sign our Contributor License Agreement, and we don't have @jnichols0 on file. You can sign our CLA at https://zed.dev/cla. Once you've signed, post a comment here that says '@cla-bot check'.

[jnichols0]

@cla-bot check

[cla-bot]

The cla-bot has been summoned, and re-checked this pull request!

[MrSubidubi]

Nice, thank you! And congratulations to your first contribution! 🎉