docs(CHANGES): Note module move

Author: tony

CHANGES

@@ -20,10 +20,12 @@ $ pip install --user --upgrade --pre libvcs
 
 ### Internals
 
+- {issue}`345` `libvcs.utils` -> `libvcs._internal` to make it more obvious the APIs are strictly
+  closed.
 - `StrOrPath` -> `StrPath`
-- {issue}`#336`: {class}`~libvcs._internal.subprocess.SubprocessCommand`: Encapsulated {mod}`subprocess`
-  call in a {func}`dataclasses.dataclass` for introspecting, modifying, mocking and controlling
-  execution.
+- {issue}`#336`: {class}`~libvcs._internal.subprocess.SubprocessCommand`: Encapsulated
+  {mod}`subprocess` call in a {func}`dataclasses.dataclass` for introspecting, modifying, mocking
+  and controlling execution.
 - Dataclass helper: {class}`~libvcs._internal.dataclasses.SkipDefaultFieldsReprMixin`
 
   Skip default fields in object representations.