Update README.md

Author: AriaMoradi

README.md

@@ -22,7 +22,7 @@ how to do it is described in `webUI/react/README.md` but for short,
  then `yarn start` to start the client if a new browser window doesn't start automatically,
  then open `http://127.0.0.1:3000` in a modern browser.
 
-## Can I use this application?
+## Is the application usable? Should I test it?
 Checkout [the state of project](https://github.com/AriaMoradi/Tachidesk/issues/2) to see what's implemented.
 
 ## License