Updated Readme

Author: fbattello

README.md

@@ -186,7 +186,12 @@ parking = Entity.load(SmartDataModels.SmartCities.Parking.OffStreetParking)
 ```
 
 Once loaded we can manipulate our new parking the same way we've done until now.<br>
-For the moment just see how it is occupied.
+First apply this minor fix that will prevent brokers to create the parking.
+```python
+parking.ctx.remove("iudx:SmartParking")  # brokers won't resolve this context without any additional config
+```
+
+Let's see how it is occupied.
 
 ```python
 n_total = parking["totalSpotNumber"].value