Added run keyword to example file triggering-a-workflow.md

[AliyevH]

Why:

Run keyword is missing in the file triggering-a-workflow.md.

What's being changed (if available, include any code snippets, screenshots, or gifs):

Fixed example and added missing keyword to the file content

[welcome]

Thanks for opening this pull request! A GitHub docs team member should be by to give feedback soon. In the meantime, please check out the contributing guidelines.

[github-actions]

👓 Previews for changed content

This comment is 🤖 automatically generated and will be overwritten every time changes are committed to this branch.

The table contains an overview of files in the content directory that have been changed in this pull request. It's provided to make it easy to review your changes on the review server. Please note that changes to the data directory will not show up in this table.

---

Content directory changes

You may find it useful to copy this table into the pull request summary. There you can edit it to share links to important articles or changes and to give a high-level overview of how the changes in your pull request support the overall goals of the pull request.

Source	Preview	Production	What Changed
actions/writing-workflows/choosing-when-your-workflow-runs/triggering-a-workflow.md	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10	fpt ghec ghes@ 3.15 3.14 3.13 3.12 3.11 3.10

---

Key: fpt: Free, Pro, Team; ghec: GitHub Enterprise Cloud; ghes: GitHub Enterprise Server
This table is posted from the Content Changes Table Comment workflow.

[subatoi]

Thanks for spotting and fixing that @AliyevH — I'll get this merged for you now and you'll see it go live shortly after. Thanks for your interest in the GitHub docs!

[github-actions]

Thanks very much for contributing! Your pull request has been merged 🎉 You should see your changes appear on the site in approximately 24 hours. If you're looking for your next contribution, check out our help wanted issues ⚡