Merge pull request #2900 from theacodes/fix-2766

Note that nvm.ByteArray is available at microcontroller.nvm

Author: tannewt

shared-bindings/nvm/__init__.c

@@ -34,7 +34,11 @@
 //| """Non-volatile memory
 //|
 //| The `nvm` module allows you to store whatever raw bytes you wish in a
-//| reserved section non-volatile memory."""
+//| reserved section non-volatile memory.
+//| 
+//| Note that this module can't be imported and used directly. The sole
+//| instance of :class:`ByteArray` is available at
+//| :attr:`microcontroller.nvm`."""
 //|
 STATIC const mp_rom_map_elem_t nvm_module_globals_table[] = {
     { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_nvm) },