sentence fix: remove duplicated verb in step list

Step 7 of the **Choosing and using a workflow** template procedure repeats the verb: "For example, you might want to change the value of on to change when the workflow runs."

This change removes the duplication and proposes the corrected sentence "For example, you might want to change the value of on when the workflow runs."

Author: samsav

content/actions/how-tos/write-workflows/use-workflow-templates.md

@@ -38,7 +38,7 @@ topics:
    There are guides to accompany many of the workflow templates for building and testing projects. For more information, see [AUTOTITLE](/actions/automating-builds-and-tests).
 
 1. Some workflow templates use secrets. For example, {% raw %}`${{ secrets.npm_token }}`{% endraw %}. If the workflow template uses a secret, store the value described in the secret name as a secret in your repository. For more information, see [AUTOTITLE](/actions/security-guides/using-secrets-in-github-actions).
-1. Optionally, make additional changes. For example, you might want to change the value of `on` to change when the workflow runs.
+1. Optionally, make additional changes. For example, you might want to change the value of `on` when the workflow runs.
 1. Click **Start commit**.
 1. Write a commit message and decide whether to commit directly to the default branch or to open a pull request.