Now that you've joined a challenge, follow these steps to invite your challengers to the challenge:
1. Log in the app.
2. Select the active challenge where you'll be inviting your challengers.
3. Select the "Invite Challengers" Option.
4. Add the email address of the challenger you want to invite and hit in the "Invite" option.
5. Once the invitation is successfully sent, you'll see this message and your challenger will be notified to join to that challenge.
