Fix PDF export and update some chapters

chapters/1000-suppliers.md

@@ -10,10 +10,19 @@
 
 ## Europe (EU)
 
+**Spain (ES)**
+
+* [Nitroparis](https://nitroparis.com/)
+
+**Germany (DE)**
+
+* [Pyro-Tools.eu](https://pyro-tools.eu/)
+
 **The Netherlands (NL)**
 
 
 
 **United Kingdom (UK)**
 
-* [Cooperman435](https://www.cooperman435.co.uk/)
+* [Cooperman435](https://www.cooperman435.co.uk/)
+* [Potterycrafts](https://www.potterycrafts.co.uk/)

chapters/999-references-and-links.md

@@ -1,4 +1,6 @@
-# References and links
+## References and links
+
+- TODO process links from: <http://www.freepyroinfo.com/pyrotechnic_links.html>
 
 - [PyroData.com](https://pyrodata.com)
 - [PyroGuide wiki (hosted at PyroData.com)](https://pyrodata.com/PyroGuide/default.htm)
@@ -11,6 +13,8 @@
 - [PyroSource Wiki (famdom.com)](https://pyrosource.fandom.com/)
 - [The Green Man](https://www.thegreenman.me.uk/)
 - [CannonFuse.com pyrotechnic information](https://cannonfuse.com/pyrotechnic-information.html)
+- [Passfire Labs Inc.](http://www.passfire.com/)
+- [FreePyroInfo.com](http://www.freepyroinfo.com/)
 
 ## Books
 
@@ -29,6 +33,10 @@
 - Firework Art by Mark Fleming, ISBN-0-9550621-0-1 (Pub Rumble)
 - [Weingart's Dictionary and Manual of Fireworks by George Weingart, ISBN-13/EAN 9780820600932 (Chemical Publishing Company)](https://www.amazon.com/Weingarts-Dictionary-Manual-Fireworks-Weingart/dp/0820600938)
 
+## Clubs
+
+- [UK Pyrotechnics Society](http://www.pyrosociety.org.uk/)
+
 ## Forums
 
 - [Fireworking.com Forum](https://fireworking.com/forum)