Fixes #102: Add CM4 Pocket CHIP clone board.

_boards_cm/cm4-pocket-chip.md

@@ -0,0 +1,11 @@
+---
+layout: board
+title: "CM4 Pocket C.H.I.P. Clone"
+short_description: A clone of the Pocket C.H.I.P. based on the CM4.
+status: prototype
+picture: "/images/board-cm4-pocket-chip.jpg"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/102"
+link: https://twitter.com/diodesdelight/status/1372209073534418953
+videos: []
+---
+This CM4 Handheld is based on the now-discontinued [Pocket C.H.I.P.](https://shop.pocketchip.co/collections/frontpage/products/pocket-c-h-i-p-new), and allows for handheld use and retro gaming on its built-in touchscreen display. It includes a full keypad below the display, all built on top of a nice looking PCB!