chore: added comment

src/App.tsx

@@ -18,6 +18,8 @@ const App = () => {
   useEffect(() => {
     if (window.location.hostname === '0.0.0.0') {
       // A change of the host is needed to make  library available in windows object
+      // the app can't encrypt files without the crypto library
+      // which is only available on https or localhost
       window.location.hostname = 'localhost'
     }