Updated Appendix A: Printed circuit boards (markdown)

Appendix-A:-Printed-circuit-boards.md

@@ -17,7 +17,7 @@ Want to make your own Ploopy Mouse boards? Great! Less work for us. Seriously, t
 
 ## Step 1: Order the PCBs from a PCB production company
 
-We use PCBWay for our boards. You may use them **TODO add PCBWay published PCB link here**, or any other PCB production company. Here are the most important configurations you'll need to communicate to the company:
+Here are the most important configurations you'll need to communicate to the company:
 
 *Main board*
 - 4 layers
@@ -37,14 +37,12 @@ If something is missing from here, it's not really important.
 
 At some point, you'll have to upload design files to the production company. Send them `/hardware/electricals/production/gerbers.zip` **TODO add this**. That should contain everything you need to get the boards made. If the production company rejects this package, however, you'll need to address the issue yourself.
 
-We estimate that it'll probably cost around $80 to get the boards made, plus shipping.
-
 ## Step 2: Order the electronics components
 
 All of the components are described in the schematics of the PCBs (see `/hardware/electricals/production/base.pdf` and `/hardware/electricals/production/vertical.pdf` **TODO ADD THESE**). Ordering the components is left as an exercise for the reader. Here are a few tips:
 
 - We used Alibaba to order PMW3360 sensors
-- Digikey carries all of the other electrical components
+- Digikey and Mouser carry all of the other electrical components
 
 Here's a complete list of components: