fix no key on mapped react elements

src/index/Stars.tsx

@@ -25,7 +25,7 @@ export function Stars() {
     return positions;
   }, []);
 
-  return positions.map(coord => <mesh position={coord}>
+  return positions.map((coord, i) => <mesh key={i} position={coord}>
       <sphereGeometry args={[.1]} />
       <meshBasicMaterial />
     </mesh>

src/nav/Menu.tsx

@@ -21,7 +21,7 @@ export function Menu({active} : {active: boolean}) {
   return (
     <motion.section initial={{left: hidden}} className="menu">
       {
-        articles.map(title => <div>
+        articles.map(title => <div key={title}>
           {title}
         </div>)
       }