docs(#49): change radius for discord and fix color error

.website/components/hero.vue

@@ -13,7 +13,7 @@
                 A backend framework for building efficient and scalable server-side applications <br /><span class="font-bold">Powered by <span class="text-cyan-500">Dart</span> 🎯</span>
             </div>
             <div class="flex flex-col lg:flex-row justify-center items-center gap-4">
-                <a href="/in_a_nutshell.html" class="bg-orange-400 px-8 py-4 rounded-full">Get Started</a>
+                <a href="/in_a_nutshell.html" class="bg-orange-400 px-8 py-4 rounded-full !hover:text-white">Get Started</a>
                 <a href="https://discord.gg/zydgnJ3ksJ" class="px-8 py-4">Join the community</a>
             </div>
         </div>

.website/components/home.vue

@@ -20,7 +20,7 @@ import Hero from './hero.vue'
 			<div class="flex flex-col w-full">
 				<iframe 
 					src="https://discord.com/widget?id=1099781506978807919&theme=dark" 
-					class="w-full h-64" 
+					class="w-full h-64 rounded-lg" 
 					allowtransparency="true" 
 					frameborder="0" 
 					sandbox="allow-popups allow-popups-to-escape-sandbox allow-same-origin allow-scripts"