docs: adjust billing signup docs

Author: adamaltman

pages/billing/images/1.upgrade-plan.png

@@ -14,41 +14,20 @@ If you use the email/password signup option, you will receive an email to verify
 
 ## Create an organization
 
-When you first login, you will be prompted to create an organization.
-The organization will start on our free "starter" plan.
+When you first login, you are prompted to create an organization.
+The organization creation starts a free trial (for 30 days).
 
-## Start your trial
+## Create a project
 
-Upgrade to get more features such as public docs, custom domains and developer portals.
+You'll have the option to select from a few template options.
+Our favorite template to start with is the "Warp Multi-sidebar" for moderate complexity technical doc projects.
 
-There is a link to upgrade visible in the top navigation.
-
-![upgrade your plan](./images/1.upgrade-plan.png)
-
-The premium plans have a free-trial period.
-Select your trial.
-
-![upgrade start trial](./images/2.upgrade-start-trial.png)
 
 ## Subscribe
 
 You may subscribe at any time during your trial period.
-You will not be charged until the trial period is over.
-
-Click "subscribe now" in the top navigation.
-
-![subscribe now](./images/3.subscribe-now.png)
-
-Pick your plan.
-
-![pick your plan](./images/4.pick-plan.png)
-
-Enter your payment method.
-We accept payments cards.
-We can invoice for payment for balances over $3,000 and can receive check, ACH or wire transfer.
-You may add a PO.
-It will appear on the invoice.
-We do not accept a PO as a form of payment.
-
-![payment-method and po](./images/5.payment-method-and-po.png)
+Visit the billing tab, configure your product, plan, and preferred billing period selections.
+Enter your billing details, and get started.
+You may invite someone else to complete the billing process.
 
+Paying by invoice is only available on the Enterprise+ plans.