Improve MQTT instructions formatting

Author: Diego-Viero

assignments/05-walkie-talkie-discover/index.md

@@ -25,7 +25,9 @@ Although we will use a lot of code, you are not required to understand every lit
 As a prerequisite for this tutorial to work, make sure you followed and successfully completed [Tutorial 4 of the Connected Interaction Kit website](https://id-studiolab.github.io/Connected-Interaction-Kit/tutorials/03-connect-to-the-internet/) and connected your PicoExpander to the internet. 
 
 
-After connecting to the internet, download the MQTT library: [MQTT.zip](MQTT.zip). Once downloaded, extract its contents to a folder.  Open the extracted MQTT folder and copy the file named ```MQTT.py``` to your the ```/lib``` folder in your **CIRCUITPY drive**. 
+After connecting to the internet, download the MQTT library: [MQTT.zip](MQTT.zip).  
+Once downloaded, extract its contents to a folder.  
+Open the extracted MQTT folder and copy the file named ```MQTT.py``` to your the ```/lib``` folder in your **CIRCUITPY drive**.  
 Make sure the ```MQTT.py``` file is successfully placed in the ```/lib``` folder before proceeding to the next step.
 
 Next we are going to update the ```settings.toml``` file in order to connect to the MQTT server.