Update README.md

Author: mvniekerk

README.md

@@ -136,6 +136,7 @@ Peripheral Access Crates were also called Device Crates.
 
 - [`atsamd21`](https://github.com/atsamd-rs/atsamd) Peripheral access API for Microchip (formerly Atmel) SAMD21 microcontrollers.  This git repo hosts both the peripheral access crate and the hal.
 - [`atsamd51`](https://github.com/atsamd-rs/atsamd) Peripheral access API for Microchip (formerly Atmel) SAMD51 microcontrollers.  This git repo hosts both the peripheral access crate and the hal.
+- [`atsame54`](https://github.com/atsamd-rs/atsamd) Peripheral access API for Microchip (formerly Atmel) SAME54 microcontrollers.  This git repo hosts both the peripheral access crate and the hal.
 - [`avr-device`](https://github.com/Rahix/avr-device) Peripheral access API for Microchip (formerly Atmel) AVR microcontroller family.
 - [`sam3x8e`](https://crates.io/crates/sam3x8e) Peripheral access API for Atmel SAMD3X8E microcontrollers (generated using svd2rust)  - ![crates.io](https://img.shields.io/crates/v/sam3x8e.svg)
 
@@ -232,7 +233,7 @@ Implementations of [`embedded-hal`] for microcontroller families and systems run
 
 ### Microchip
 
-- [`atsamd-hal`](https://crates.io/crates/atsamd-hal) - HAL for SAMD21 and SAMD51 - ![crates.io](https://img.shields.io/crates/v/atsamd-hal.svg)
+- [`atsamd-hal`](https://crates.io/crates/atsamd-hal) - HAL for SAMD21, SAMD51 and SAME54 - ![crates.io](https://img.shields.io/crates/v/atsamd-hal.svg)
 - ['avr-hal'](https://github.com/Rahix/avr-hal) - HAL for AVR microcontroller family and AVR-based boards
 
 ### Nordic