Improve formatting of table in readme

Author: jonas-schievink

README.md

@@ -34,6 +34,7 @@ Every nRF chip has its own crate, listed below:
 | [`nRF52833`](https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF52833) | [`v1.3`](https://infocenter.nordicsemi.com/pdf/nRF52833_PS_v1.3.pdf) | [`v1.0.1`](http://infocenter.nordicsemi.com/pdf/nRF52833_DK_User_Guide_v1.0.1.pdf) |
 | [`nRF52840`](https://www.nordicsemi.com/Products/Low-power-short-range-wireless/nRF52840) | [`v1.1`](https://infocenter.nordicsemi.com/pdf/nRF52840_PS_v1.1.pdf) | [`v1.2`](https://infocenter.nordicsemi.com/pdf/nRF52840_DK_User_Guide_v1.2.pdf) |
 | [`nRF9160`](https://www.nordicsemi.com/Products/Low-power-cellular-IoT/nRF9160) | [`v2.0`](https://infocenter.nordicsemi.com/pdf/nRF9160_PS_v2.0.pdf) | [`v0.9.3`](https://infocenter.nordicsemi.com/pdf/nRF9160_DK_HW_User_Guide_v0.9.3.pdf) |
+
 \* These devices do not have a separate development kit and share the [NRF52 DK](https://www.nordicsemi.com/Software-and-tools/Development-Kits/nRF52-DK)
 
 ## License
@@ -89,11 +90,11 @@ Install the cross compilation toolchain to target your device. You would typical
 ```console
 $ rustup target add thumbv7em-none-eabihf
 ```
-Install the tools to flash the device. 
+Install the tools to flash the device.
 ```console
 $ cargo install cargo-embed
 ```
 
 ### For Every Project (optional)
 
-Setup the `Cargo.toml` file to use the correct features. Features allow for conditional compilation which is essential for a library like this that supports multiple different devices. Under the `[features]` section add the following line `default = ["52840"]` for the nRF52840-DK device or whatever other feature is applicable for your device. This is optional but it will allow you to simply call `cargo run` and `cargo build` instead of `cargo run --features 52840` and `cargo build --features 52840` respectively. Note that some demo projects do not have features so this step may not be necessary. If you get a whole bunch of compilation errors or plugins like rust-analyzer are not working then check that you have set the chip features correctly. 
+Setup the `Cargo.toml` file to use the correct features. Features allow for conditional compilation which is essential for a library like this that supports multiple different devices. Under the `[features]` section add the following line `default = ["52840"]` for the nRF52840-DK device or whatever other feature is applicable for your device. This is optional but it will allow you to simply call `cargo run` and `cargo build` instead of `cargo run --features 52840` and `cargo build --features 52840` respectively. Note that some demo projects do not have features so this step may not be necessary. If you get a whole bunch of compilation errors or plugins like rust-analyzer are not working then check that you have set the chip features correctly.