Add RN to footer

Author: tylermcginnis

usehooks.com/src/sections/Footer.astro

@@ -9,6 +9,7 @@
   <nav>
     <a href="https://github.com/uidotdev/usehooks">View the Repo</a>
     <a href="https://bytes.dev">JavaScript Newsletter</a>
+    <a href="https://reactnewsletter.com">React Newsletter</a>
     <a href="https://react.gg">Learn React</a>
     <a href="https://query.gg">Learn React Query</a>
   </nav>