* Add support for Reviung41
* Add readme file for Reviung41 Vial keymap
* Add comment to unlock key settings
* Update readme with link to KLE layout.
* Reduce firmware size when using a ProMicro
The following functions will be disabled to reduce firmware size when using a ProMicro MCU:
* QMK Settings
* Mouse Keys
If an alternate MCU is used and a [converter](https://docs.qmk.fm/#/feature_converters?id=supported-converters) is specified, these features will be enabled.
`readme.md` has been updated to note this.
