message: docs(schema): Fix typo of $all in $and
diff: @@ -129,7 +129,7 @@ Find all records that match all of the given criteria.
  // Find all messages that are not marked as archived and in room 2
  app.service('messages').find({
  query: {
  - $all: [{ archived: { $ne: true } }, { roomId: 2 }]
  + $and: [{ archived: { $ne: true } }, { roomId: 2 }]
  }
  })
  ```
  