Here are some useful resources I found in French.

To weave on the Rigid Heddle (RH) Loom:

• How to create patterns on an RH loom:

http://tricofolk.info/realiser-des-motifs-avec-un-metier-a-peigne-envergeur/

http://revesdefibres.wifeo.com/utiliser-un-metier-a-peigne-rigide-approfondissement.php

• Tutorial on weaving on an RH loom:

http://verolaine.blogspot.com/p/tuto-tissage.html

• Using a WIF diagram to weave on an RH loom:

http://ptissages.free.fr/?page_id=633

• Weaving with 2 reeds on an RH loom:

http://tricofolk.info/utiliser-deux-peignes-envergeur/