message: doc: Make minor grammatical fixes to AddASetting.md
  (Add some capital letters here and there)
diff: `.../console/published/wincon.w` in the OS repo when you submit the PR.
  The branch won't build without it.
  * For now, you can update winconp.h with your consumable changes.
  - * define registry name (ex `CONSOLE_REGISTRY_CURSORCOLOR`)
  - * add the setting to `CONSOLE_STATE_INFO`
  - * define the property key ID and the property key itself
  + * Define registry name (ex `CONSOLE_REGISTRY_CURSORCOLOR`)
  + * Add the setting to `CONSOLE_STATE_INFO`
  + * Define the property key ID and the property key itself.
  - Yes, the large majority of the `DEFINE_PROPERTYKEY` defs are the same, it's only the last byte of the guid that changes
  2. Add matching fields to Settings.hpp
  