Additional dependencies required for "Step 1 - Install Dependencies"

[AndrewBarfield]

Machine: Jetson Xavier NX (literally just out of the box)

I had to run this between step 2 and step 3 of "Step 1 - Install Dependencies":

sudo apt-get install libjpeg-dev zlib1g-dev
pip install Pillow

Not doing so caused the error:

The headers or library files could not be found for jpeg, a required dependency when compiling Pillow from source.

Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation.html