update brachiograph description

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@ -35,7 +35,7 @@ A curated list of code and resources for computer-controlled drawing machines an
- [Roland Pen Plotters](https://www.youtube.com/watch?v=6_pwzqPk6Gg) - Vintage flatbed HPGL pen plotters. Search eBay for "roland dxy".
- [Polargraph](http://www.polargraph.co.uk) - The original polargraph hardware and software project.
- [Makelangelo](http://www.makelangelo.com) - Open source polargraph artbot.
- [BrachioGraph](https://brachiograph.readthedocs.io/en/latest/) - The cheapest, simplest possible pen-plotter.
- [BrachioGraph](https://brachiograph.readthedocs.io/en/latest/) - A cheap and simple plotter made from sticks, servos, and a Raspberry Pi running Python.
### Motor Controllers