basic subpatchop doc?

md/5_writing_ops/patchingops/subpatchops.md

@@ -6,11 +6,11 @@ you can create new ops from existing ops. We call those subpatch ops. You can re
 
 there are multiple ways to patch ops. you can use the "Patch a new op" item in the menu, or select multiple ops and find a button in the right panel to create an op from the selection.
 
-namespaces do not only categorize and group operators, they also control who can access ops.
+## Hierarchy of namespaces
 
+namespaces do not only categorize and group operators, they also control who can access ops.
 The outcome of this is a nested hierarchy how ops can use certain ops or not.
 
-## Prerequisites
 
 | Namespace Prefix |  |
 | ----------- | --------- |