update submodules.

.gitmodules

@@ -1,15 +1,16 @@
 [submodule "aemdesign-aem-core"]
 	path = aemdesign-aem-core
 	url = https://github.com/aem-design/aemdesign-aem-core.git
-	branch = master
+	branch = develop
 [submodule "aemdesign-aem-support"]
 	path = aemdesign-aem-support
 	url = https://github.com/aem-design/aemdesign-aem-support.git
-	branch = master
+	branch = develop
 [submodule "aemdesign-operations"]
 	path = aemdesign-operations
 	url = https://github.com/aem-design/aemdesign-operations.git
-	branch = master
+	branch = develop
 [submodule "aemdesign-archetype"]
 	path = aemdesign-archetype
 	url = https://github.com/aem-design/aemdesign-archetype.git
+	branch = develop