feelpp.md

@@ -3,7 +3,7 @@
 # Preriquisites
 
 * Read module documentation first.
-* The up to date documentation is available at [book.feelpp.org](https://book.feelpp.org/user-manual/) and should be the reference documentation.
+* The up to date documentation is available at [docs.feelpp.org](https://book.feelpp.org/user-manual/) and should be the reference documentation.
 
 # Feel++ module (difficulty: easy)