Add schematics pdf for dupico, add pcbway sponsorship

board/DuPal_V3/README.md

@@ -18,6 +18,18 @@ The board is designed to help me analyze and dump various types of PLDs and memo
 
 Various adapters (or "pods") can be designed to suit different types of ICs. The pods will be plugged in the ZIF42 socket.
 
+### Sponsorship
+
+![PCBWay_logo](pics/pcbway_logo.png)
+
+This project is kindly sponsored by [PCBWay](https://pcbway.com).
+PCBWay specializes in manufacturing high-quality PCBs and makes them affordable to hobbyist and professionals alike.
+
+The range of services they offer include PCB prototyping, assembly, instant quotes for your order, a verification process by a team
+of experts and an easy to use, hassle-free order process.
+
+I'm grateful to PCBWay for the support in creating this project.
+
 ## Software
 
 ### Firmware