add the Open Book board

_board/openbook_m4.md

@@ -0,0 +1,27 @@
+---
+layout: download
+board_id: "openbook_m4"
+title: "Open Book Download"
+name: "The Open Book "
+manufacturer: "Oddly Specific Objects"
+board_url: "https://github.com/joeycastillo/The-Open-Book"
+board_image: "openbook_m4.jpg"
+features:
+  - 400x300 e-paper display
+  - Feather & STEMMA compatible
+  - MicroSD card slot
+  - Audio jack for stereo audio + mic input
+  - Detailed explanatory silkscreen
+---
+
+The Open Book is an open-hardware device for reading books in all the languages of the world. It includes a large screen and buttons for navigation, as well as audio options for accessibility and ports to extend its functionality. Its detailed silkscreen, with the all the manic energy and quixotic ambition of a Dr. Bronner's bottle, aims to demystify the Open Book's own design, breaking down for the curious reader both how the book works, and how they can build one for themselves.
+
+For more detailed technical specifications, check out [the Hackaday.io project page](https://hackaday.io/project/168761-the-open-book-feather).
+
+## Purchase
+
+The Open Book is not yet available for purchase, but you can [order the board](https://oshpark.com/shared_projects/9h6jn9B1) from OSH Park, and the BOM is available at [the project's GitHub page](https://github.com/joeycastillo/The-Open-Book). Instructions for assembly are printed on the front of the PCB.
+
+## Contribute
+
+Have some info to add for this board? Edit the source for this page [here](https://github.com/adafruit/circuitpython-org/edit/master/_board/{{ page.board_id }}.md).