Update Speakeasy URL (colinhacks#3663)

Speakeasy is now found at speakeasy.com!

README.md

@@ -252,7 +252,7 @@ Sponsorship at any level is appreciated and encouraged. If you built a paid prod
     <td align="center">
       <p></p>
       <p>
-      <a href="https://speakeasyapi.dev/?utm_source=zod+docs">
+      <a href="https://speakeasy.com/?utm_source=zod+docs">
         <picture height="40px">
           <source media="(prefers-color-scheme: dark)" srcset="https://github.com/colinhacks/zod/assets/3084745/b1d86601-c7fb-483c-9927-5dc24ce8b737">
           <img alt="speakeasy" height="40px" src="https://github.com/colinhacks/zod/assets/3084745/647524a4-22bb-4199-be70-404207a5a2b5">
@@ -261,7 +261,7 @@ Sponsorship at any level is appreciated and encouraged. If you built a paid prod
       <br  />   
       SDKs & Terraform providers for your API
       <br/>
-      <a href="https://speakeasyapi.dev/?utm_source=zod+docs" style="text-decoration:none;">speakeasyapi.dev</a>
+      <a href="https://speakeasy.com/?utm_source=zod+docs" style="text-decoration:none;">speakeasy.com</a>
       </p>
       <p></p>
     </td>