Click on your profile on the top right and click 'My Subscription' as shown below:
On your Subscription page, select 'Cancel Subscription' as show below.
A pop-up window will appear asking for confirmation.
Click 'Yes' to confirm your cancellation.
If you change your mind and would like to resubscribe (yes, we would love to have you back!), simply click the 'Reactivate Subscription' link as shown in the image below: