Clarify 10k/10q may be null for TSLA and other assets

src/views/RequestView.vue

@@ -189,7 +189,7 @@
     ]
   }
 }</pre>
-          <p class="note"><strong>Note:</strong> <code>symbol</code> changes with assets; <code>10k</code>/<code>10q</code> can be an object or <code>null</code>.</p>
+          <p class="note"><strong>Note:</strong> <code>symbol</code> changes with assets; <code>10k</code>/<code>10q</code> can be an object or <code>null</code> for any asset (including TSLA).</p>
         </div>
 
         <div class="guide-section">