Added makefile target for parts list

hardware/design_notes/Makefile

@@ -1,6 +1,10 @@
 # Makefile for design notes
 
-all: fbri-notes.pdf
+all: fbri-notes.pdf Parts.md
 
 %.pdf: %.tex
 	pdflatex $<
+
+.PHONY: Parts.md
+Parts.md:
+	sed -i 's/[Ff]arnell.*|.*\[\([0-9]*\)\].*|/Farnell | [\1](http:\/\/uk.farnell.com\/jsp\/search\/browse.jsp;jsessionid=0?N=0\&Ntk=partnumbers\&Ntt=*\1*) |/g' Parts.md