diff --git a/README.md b/README.md
index 3ae9e99..220b538 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ If one process hangs on a long running message method it will not affect the res
 
 ### Logical structure
 
-![overview](steward.svg)
+![overview](doc/steward.svg)
 
 ## Terminology
 
diff --git a/steward-not-grouped.svg b/doc/steward-not-grouped.svg
similarity index 100%
rename from steward-not-grouped.svg
rename to doc/steward-not-grouped.svg
diff --git a/steward.svg b/doc/steward.svg
similarity index 100%
rename from steward.svg
rename to doc/steward.svg
diff --git a/subscriber_method_types.go b/subscriber_method_types.go
index aa3b782..af9caff 100644
--- a/subscriber_method_types.go
+++ b/subscriber_method_types.go
@@ -185,7 +185,9 @@ func (m Method) GetMethodsAvailable() MethodsAvailable {
 	return ma
 }
 
-// Reply methods
+// Reply methods. The slice generated here is primarily used within
+// the Stew client for knowing what of the req types are generally
+// used as reply methods.
 func (m Method) GetReplyMethods() []Method {
 	rm := []Method{REQToConsole, REQToFile, REQToFileAppend}
 	return rm