refactor(navbar): add documentation url to docs nav item

Author: usmonovshohruxmirzo

src/components/common/Navbar.astro

@@ -18,7 +18,7 @@ import { FaBars, FaGithub } from "react-icons/fa"
         </div>
         <div class="hidden sm:ml-6 sm:block">
           <div class="flex space-x-4">
-            <a href="#" aria-current="page" class="block rounded-full px-3 py-2 text-base font-medium text-gray-300 hover:bg-[#333333] hover:text-white">Docs</a>
+            <a href="https://github.com/NitroVim/NitroVim/blob/main/README.md" aria-current="page" class="block rounded-full px-3 py-2 text-base font-medium text-gray-300 hover:bg-[#333333] hover:text-white">Docs</a>
             <a href="#themes" class="block rounded-full px-3 py-2 text-base font-medium text-gray-300 hover:bg-[#333333] hover:text-white">Themes</a>
             <a href="#features" class="block rounded-full px-3 py-2 text-base font-medium text-gray-300 hover:bg-[#333333] hover:text-white">Features</a>
             <a href="#updates" class="block rounded-full px-3 py-2 text-base font-medium text-gray-300 hover:bg-[#333333] hover:text-white">Updates</a>