Minor clarification to wording in submodel docs

Author: penelopeysm

usage/submodels/index.qmd

@@ -261,7 +261,7 @@ sample(make_model([1, 2, 3], [1, 2, 3], :normal), NUTS(), 1000; progress=false)
 ```
 
 While this final example really showcases the composability of submodels, it also illustrates a minor syntactic drawback.
-In the case of the `family_model`, we do not care about its return value because it is not used anywhere else in the model.
+When we create a submodel from `family_model(ps.mu, y)`, in principle, we do not really care about its return value because it is not used anywhere else in the model.
 Ideally, we should therefore not need to place anything on the left-hand side of `to_submodel`.
 However, because the special behaviour of `to_submodel` relies on the tilde operator, and the tilde operator requires a left-hand side, we have to use a dummy variable (here `_n`).