Update src/systems/nonlinear/nonlinearsystem.jl

Co-authored-by: Christopher Rackauckas <[email protected]>

Author: AayushSabharwal

src/systems/nonlinear/nonlinearsystem.jl

@@ -95,7 +95,7 @@ struct NonlinearSystem <: AbstractTimeIndependentSystem
     """
     substitutions::Any
     """
-    If false, then `sys.x` no longer performs namespacing.
+    If false, then `sys.x` no longer performs namespacing, i.e. `sys.x => x`
     """
     namespacing::Bool
     """