[Buildroot] [PATCH 4/6] board/raspberrypi/readme.txt: add missing Raspberry Pi Zero models

[Gaël PORTAY]

This adds the missing Raspberry Pi Zero models to the list.

Signed-off-by: Gaël PORTAY <gael.portay+rtone at gmail.com>
---
 board/raspberrypi/readme.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/board/raspberrypi/readme.txt b/board/raspberrypi/readme.txt
index c12a8969f1..4a0903578b 100644
--- a/board/raspberrypi/readme.txt
+++ b/board/raspberrypi/readme.txt
@@ -6,6 +6,9 @@ Intro
 These instructions apply to all models of the Raspberry Pi:
   - the original models A and B,
   - the "enhanced" models A+ and B+,
+  - the model Zero (aka Raspberry Pi Zero)
+  - the model Zero W (aka Raspberry Pi Zero W)
+  - the model Zero 2 W (aka Raspberry Pi Zero 2 W)
   - the model B2 (aka Raspberry Pi 2)
   - the model B3 (aka Raspberry Pi 3).
   - the model B4 (aka Raspberry Pi 4).
-- 
2.49.0