You can follow the below steps to edit/change your email ID: 

1. Log in to your account at www.crowdfireapp.com from your desktop or laptop
2. Select the gear icon (settings) at the top right of the screen.
3. Under the Settings Profile, you'll see a box with your current email ID. Change/add the new one and click outside the box. 
4. This will send you an email to verify the new email
5. Login to your email ID, open the email you receive from Crowdfire and click on the Verify button in that email.

Your email will now be changed to the new one :)