message: Updating sha256 -> PBKDF2, best practice
diff: @@ -34,7 +34,7 @@ const session = store.openSession();
  session
  .load('Users/1-A')
  .then((user) => {
  - user.password = sha256('new password');
  + user.password = PBKDF2('new password');
  return session.store(user);
  })
  @@ -49,7 +49,7 @@ session
  ```javascript
  session
  .load('Users/1-A', (user) => {
  - user.password = sha256('new password');
  + user.password = PBKDF2('new password');
  session.store(user, null, () => {
  session.saveChanges(() => {
  @@ -64,7 +64,7 @@ session
  session
  .load('Users/1-A')
  .then((user) => {
  - user.password = sha256('new password');
  + user.password = PBKDF2('new password');
  return session.store(user);
  })
  @@ -85,7 +85,7 @@ co(function * () {
  let user = yield store.load('Users/1-A');
  - user.password = sha256('new password');
  + user.password = PBKDF2('new password');
  yield session.store(user);
  yield session.saveChanges();
  @@ -100,7 +100,7 @@ async () => {
  let user = await store.load('Users/1-A');
  - user.password = sha256('new password');
  + user.password = PBKDF2('new password');
  await session.store(user);
  await session.saveChanges();
  