Merge pull request #137 from sanchit-gandhi/u7

[Voice Assistant] Tip to use local device

chapters/en/chapter7/voice-assistant.mdx

@@ -48,6 +48,13 @@ the device.
 
 Again, we've done this several times now, so the process will be very familiar!
 
+<Tip>
+ The following section requires the use of a microphone to record a voice input. Since Google Colab machines do not
+ have microphone compatibility, it is recommended to run this section locally, either on your CPU, or on a GPU if you
+ have local access. The checkpoint sizes have been selected as those small enough to run adequately fast on CPU, so
+ you will still get good performance without a GPU.
+</Tip>
+
 ## Wake word detection
 
 The first stage in the voice assistant pipeline is detecting whether the wake word was spoken, and we need to find ourselves