feat: placeholder bat sartzen du

src/components/YT2RSS/YT2RSS.tsx

@@ -32,7 +32,12 @@ export const YT2RSS: React.FC = () => {
       <form onSubmit={handleSubmit} className={styles.form}>
         <label htmlFor="ytUrl">Zure kanalaren helbidea:</label>
 
-        <input id="ytUrl" name="ytUrl" className={styles.ytUrl} />
+        <input
+          id="ytUrl"
+          name="ytUrl"
+          className={styles.ytUrl}
+          placeholder="adib.: https://www.youtube.com/@AhotsaInfo"
+        />
 
         <input
           value="Eskuratu RSS Feed-a"