readme update

README.md

@@ -197,8 +197,9 @@ Test the prototype.
     [x] can esp32 second tx/rx port make serial communication with FPGA
     [ ] Jumpers to switch 2.5V/3.3V for left IO banks
         isolate each PMOD group to each bank
-        move audio L0,R2 from gpio bank1 to usb bank6
-        move GP7,GP8 from gpio bank0 to gpio bank1
+        move audio L0,R2 from gpio bank7 to usb bank6
+        move GP7,GP8 from gpio bank0 to gpio bank7
         move usb pull from gpio bank0 to gpdi bank1 (D12 E12 B12 C12) or usb bank6
-        then bank0 or bank1 voltage can be selected 2.5/3.3V  
-        add jumper headers for voltage selection, route to PMOD and VCCio0/1
+        then bank0 or bank7 voltage can be selected 2.5/3.3V  
+        add jumper headers for voltage selection, route to PMOD and VCCio0/7
+        update bank decoupling capacitors