Changed all double quotes to simple quotes

Author: luccasr73

admin-functions/README.md

@@ -131,7 +131,7 @@ exports.deleteUser = functions.https.onRequest((req, res) => {
  //more on http://expressjs.com/en/4x/api.html#req.body
  admin.auth().deleteUser(uid)
  .then(() => {
- console.log("Deleted user successfully");
+ console.log('Deleted user successfully');
  //send a message to client web if the user is
  //successfully deleted
  res.status(200).send({