First version of troubleshooting guide

Change-Id: I1cfc5e93fb0c17601a280754b2841db680552d58
diff --git a/architecture.rst b/architecture.rst
index 4fa4cb1..16b83a1 100644
--- a/architecture.rst
+++ b/architecture.rst
@@ -1,3 +1,5 @@
+.. _architecture_design:
+
 Architecture and Design
 =======================