Added ENET and HDMI cables to prerequisites

README.md

@@ -23,10 +23,14 @@ This DIY guide makes sense if you **already** have an idle Raspberry Pi or you'r
 
   _If the cable can't deliver enough power, then the CPU clock speed will be limited. But it shouldn't be a problem since we won't run any compute-intensive tasks._
 
+- BMW ENET Cable (OBD to Ethernet) to connect a car to your Raspberry Pi.
+
 - **(Optional)** Power bank that is good enough to power up your Raspberry Pi.
 
   _Google can help with the choice. It's optional since you can use a Type-A or Type-C socket of a car; I've seen some guys on forums doing it way, but I prefer an independent power supply._
 
+- **(Optional)** HDMI to micro-HDMI cable for debugging purpose.
+
 - **(Optional)** Raspberry Pi case and fan.
 
   _It's optional since it's purely for your convenience. In the case of Pi 4, I would go with official ones, especially considering that official ones cost the same or even less than custom ones._