Add oreboot to Embedded/Firmware

README.md

@@ -616,6 +616,8 @@ See also [A comparison of operating systems written in Rust](https://github.com/
   * [japaric/xargo](https://github.com/japaric/xargo) — effortless cross compilation of Rust programs to custom bare-metal targets like ARM Cortex-M
 * Espressif
   * [esp-rs](https://github.com/esp-rs) home to a number of community projects enabling the use of the Rust programming language on various SoCs and modules produced by Espressif Systems.
+* Firmware
+  * [oreboot/oreboot](https://github.com/oreboot/oreboot) — oreboot is a fork of coreboot, with C removed, written in Rust
 * nRF
   * [nrf-rs/nrf-hal](https://github.com/nrf-rs/nrf-hal) — A Rust HAL for the nRF family of devices