escape markdown

SBC/rpi-4/device_driver/README.md

@@ -69,12 +69,17 @@ add the device driver in this file, see content example:
 \# at boot time, one per line. Lines beginning with "#" are ignored.
 
 i2c-dev
+
 snd-mixer-oss
+
 snd-pcm-oss
+
 radioberry
 
 
 
+
+
 Step -6-
 
 Optional step.