docs/glossary: Clarify wording for "baremetal".
@@ -4,9 +4,10 @@ Glossary
.. glossary::
baremetal
- A system without (full-fledged) OS, like an :term:`MCU`. When
- running on a baremetal system, MicroPython effectively becomes
- its user-facing OS with a command interpreter (REPL).
+ A system without a (full-fledged) OS, for example an
+ :term:`MCU`-based system. When running on a baremetal system,
+ MicroPython effectively becomes its user-facing OS with a command
+ interpreter (REPL).
board
A PCB board. Oftentimes, the term is used to denote a particular
