add documentation submodule

.gitmodules

 [submodule "node"]
 	path = node
-	url = ../VILLASnode.git
+	url = ../node.git
 [submodule "backend"]
 	path = backend
-	url = ../VILLASweb-backend.git
+	url = ../web-backend.git
 [submodule "frontend"]
 	path = frontend
-	url = ../VILLASweb.git
+	url = ../web.git
 [submodule "controller"]
 	path = controller
-	url = ../VILLAScontroller.git
+	url = ../controller.git
+[submodule "doc"]
+	path = doc
+	url = "../documentation.git"

doc @ 5080317e

+Subproject commit 5080317e00ea4f633a71b602dced7f5b2290bb51