Update README.md

Author: jamesmunns

README.md

@@ -894,6 +894,7 @@ Otherwise, please add it to the [WIP section](#wip) below.
 1. [i2c-multiplexer] - I2C - An I2C Multiplexer library that supports the PCA9546 and TCA9546A chips - [github][71] - [![crates.io](https://img.shields.io/crates/v/i2c-multiplexer.svg)](https://crates.io/crates/i2c-multiplexer)
 1. [SHT31-rs] - I2C - Fully supported SHT temperature / humidity sensors - [github][72] - [![crates.io](https://img.shields.io/crates/v/sht31.svg)](https://crates.io/crates/sht31)
 1. [AP33772S-rs] - I2C - no-std sync and async compatible rust driver for the AP33772S USB C Power Delivery with Extended Power Range I2C chip - [github][76] - [![crates.io](https://img.shields.io/crates/v/ap33772s-rs.svg)](https://crates.io/crates/ap33772s-rs)
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 [1&2]: http://blog.japaric.io/wd-1-2-l3gd20-lsm303dlhc-madgwick/
 [3]: http://pramode.in/2018/02/24/an-introduction-to-writing-embedded-hal-based-drivers-in-rust/
 [4]: http://blog.japaric.io/wd-4-enc28j60/