title: How to run Google Assistant library (on AIY kit), upon startup of Raspberry Pi?
body: <p>We set up a voice kit using Raspberry Pi (using "the MagPi essentials AIY Projects" manual).  We are able to enable Google Assistant using the command "src/assistant_library_demo.py" in the dev terminal, after Raspberry Pi starts up.  We would like to embed the voice kit in a stuffed animal with a portable power supply (i.e., used to charge cell phone on the go).  But when the portable power supply is charged, the Raspberry Pi resets.  That requires us to go back into the Raspberry Pi, open the dev terminal, and run the Google Assistant file.
  My question: Is it possible to run a startup script that automatically runs Google Assistant upon Raspberry Pi starting up?  How to do this?</p>