Committer onboarding guide

For you, the new committer:

1. File your ICLA and send it to secretary@apache.org
2. Log in to https://whimsy.apache.org; that will confirm a working ASF account
3. You can edit email routing for the account, and add other emails that you own
4. You can directly edit mailing list subscriptions (for example, you might switch them to your ASF account - you can still post from any of your registered emails)
5. Link your GitHub account with your ASF account at https://gitbox.apache.org/ once you see the big green “Merge” button on pull requests, this is working
6. Read the ASF new committer guide: https://www.apache.org/dev/new-committers-guide.html

A committer in JIRA can add a new contributor by following these steps:

1. Log in to JIRA with your committer credentials.
2. Navigate to the project where you want to add the new contributor.
3. Click on the “People” tab at the top of the page.
4. Click on the “Add People” button.
5. Enter the email address of the new contributor in the “Email Address” field.
6. Select the appropriate role for the new contributor from the “Role” dropdown menu.
7. Click the “Add” button to add the new contributor to the project.
8. An email will be sent to the new contributor asking them to accept the invitation to join the project.