Add tcn75a embedded HAL driver to README.md.

README.md

@@ -590,6 +590,7 @@ have achieved the "released" status (published on crates.io + documentation / sh
 1. [Sx127x] - SPI - Long Range Low Power Sub GHz (Gfsk, LoRa) RF Transceiver - [Intro blog post][34] - ![crates.io](https://img.shields.io/crates/v/radio-sx127x.svg)
 1. [Sx128x] - SPI - Long range, low power 2.4 GHz (Gfsk, Flrc, LoRa) RF Transceiver - [Intro blog post][35] - ![crates.io](https://img.shields.io/crates/v/radio-sx128x.svg)
 1. [TC72] - SPI - Microchip TC72 temperature sensor - ![crates.io](https://img.shields.io/crates/v/microchip-tc72r-rs.svg)
+1. [TCN75A] - I2C - Microchip TCN75A temperature sensor - ![crates.io](https://img.shields.io/crates/v/tcn75a.svg)
 1. [TMP006] - I2C - Contact-less infrared (IR) thermopile temperature sensor driver - [Intro post][17] ![crates.io](https://img.shields.io/crates/v/tmp006.svg)
 1. [TMP1x2] - I2C - TMP102 and TMP112x temperature sensor driver - [Intro blog post][22] ![crates.io](https://img.shields.io/crates/v/tmp1x2.svg)
 1. [TSIC] - GPIO - TSIC 306 temperature sensor driver - [Intro blog post][50] ![crates.io](https://img.shields.io/crates/v/tsic.svg)
@@ -706,6 +707,7 @@ have achieved the "released" status (published on crates.io + documentation / sh
 [Sx127x]: https://crates.io/crates/radio-sx127x
 [Sx128x]: https://crates.io/crates/radio-sx128x
 [TC72]: https://crates.io/crates/microchip-tc72r-rs
+[TCN75A]: https://crates.io/crates/tcn75a
 [TMP006]: https://crates.io/crates/tmp006
 [TMP1x2]: https://crates.io/crates/tmp1x2
 [TSIC]: https://crates.io/crates/tsic