(email links) fix headings (#2055)

Author: alexisintech

docs/custom-flows/email-links.mdx

@@ -42,9 +42,7 @@ This guide demonstrates how to use Clerk's API to build a custom flow for handli
   1. Because this guide focuses on email links, uncheck the box for **Email verification code**.
   1. Select **Continue** to save your changes.
 
-  ## Create the flows
-
-  ### Sign-up flow
+  ## Sign-up flow
 
   1. The [`useSignUp()`](/docs/references/react/use-sign-up) hook is used to get the [`SignUp`](/docs/references/javascript/sign-up) object.
   1. The `SignUp` object is used to access the [`createEmailLinkFlow()`](/docs/references/javascript/types/email-address#create-email-link-flow) method.
@@ -273,7 +271,7 @@ This guide demonstrates how to use Clerk's API to build a custom flow for handli
     </Tab>
   </Tabs>
 
-  ### Sign-in flow
+  ## Sign-in flow
 
   1. The [`useSignIn()`](/docs/references/react/use-sign-in) hook is used to get the [`SignIn`](/docs/references/javascript/sign-in) object.
   1. The `SignIn` object is used to access the [`createEmailLinkFlow()`](/docs/references/javascript/types/email-address#create-email-link-flow) method.
@@ -514,7 +512,7 @@ This guide demonstrates how to use Clerk's API to build a custom flow for handli
         ```
       </CodeBlockTabs>
 
-      ### Add new email flow
+      ## Add new email flow
 
       When a user adds an email address to their account, you can use email links to verify the email address.