[Keyboard] Add model-v keyboard (#13643)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/model_v/readme.md

@@ -0,0 +1,20 @@
+# model-v
+
+![](https://i.imgur.com/uqL3HSWl.png)
+
+A minivan case compatible PCB with flex cuts.
+
+-   Keyboard Maintainer: matthewdias
+-   Hardware Supported: model-v pcb
+
+To reset the keyboard into bootloader mode, press the reset switch on the underside.
+
+Make example for this keyboard (after setting up your build environment):
+
+    make model_v:default
+
+Flashing example for this keyboard ([using the command line](https://docs.qmk.fm/#/newbs_flashing?id=flash-your-keyboard-from-the-command-line)):
+
+    make model_v:default:flash
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).