rockchip: rk3399-puma: migrate README to doc/board in rST format
This migrates the plaintext README in
board/theobroma-systems/puma_rk3399 to doc/board/theobroma-systems and
while doing so, update the instructions and rewrite it in rST.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
diff --git a/doc/board/theobroma-systems/index.rst b/doc/board/theobroma-systems/index.rst
index 945f7a2..0720128 100644
--- a/doc/board/theobroma-systems/index.rst
+++ b/doc/board/theobroma-systems/index.rst
@@ -7,3 +7,4 @@
:maxdepth: 2
jaguar_rk3588
+ puma_rk3399