chore(docs): update documentation

Author: dev-xo

README.md

@@ -56,7 +56,7 @@ Huge thanks to our sponsors who makes it possible to maintain and improve Remix
       </a>
     </td>
      <td align="center" width="33%">
-      <a href="https://www.convex.dev" target="_blank">
+      <a href="https://www.convex.dev/?utm_source=remix-saas-github" target="_blank">
         <picture>
         <source media="(prefers-color-scheme: dark)" srcset="https://static-http.s3.amazonaws.com/logo/convex-logo-light.svg">
         <source media="(prefers-color-scheme: light)" srcset="https://static-http.s3.amazonaws.com/logo/convex-logo.svg">

docs/README.md

@@ -158,7 +158,7 @@ Huge thanks to our sponsors who makes it possible to maintain and improve Remix
       </a>
     </td>
      <td align="center" width="33%">
-      <a href="https://www.convex.dev" target="_blank">
+      <a href="https://www.convex.dev/?utm_source=remix-saas-github" target="_blank">
         <picture>
         <source media="(prefers-color-scheme: dark)" srcset="https://static-http.s3.amazonaws.com/logo/convex-logo-light.svg">
         <source media="(prefers-color-scheme: light)" srcset="https://static-http.s3.amazonaws.com/logo/convex-logo.svg">