(Documentation) apio appears to now support UPDuino 3.1

[m00dawg]

The install docs (https://github.com/tinyvision-ai-inc/UPduino-v3.0/blob/master/docs/source/getting_started/tool_installation.rst) mention that a fork of apio may be required. I thought I would check just to see and the pip-version of apio seems to include UPDuino versions up to 3.1:

tim@lindawg ~/riscv $ python3
python3            python3.10         python3.10-config  python3-config     
tim@lindawg ~/riscv $ python3 -m venv venv
tim@lindawg ~/riscv $ . venv/bin/activate
(venv) tim@lindawg ~/riscv $ pip3 install apio
...
(venv) tim@lindawg ~/riscv $ apio boards -l | grep upd
upduino          iCE40-UP5K-SG48                ice40    up           5k    sg48      
upduino2         iCE40-UP5K-SG48                ice40    up           5k    sg48      
upduino21        iCE40-UP5K-SG48                ice40    up           5k    sg48      
upduino3         iCE40-UP5K-SG48                ice40    up           5k    sg48      
upduino31        iCE40-UP5K-SG48                ice40    up           5k    sg48      
(venv) tim@lindawg ~/riscv $ 

[vr2045]

Great, we'll update the docs.