Add release of qemu-exit 1.0.x (#25)

Author: andre-richter

content/this-month/2020-09.md

@@ -46,11 +46,26 @@ In this section, we describe updates to personal projects that are not directly
 
 This month, ...
 
+### [`andre-richter/qemu-exit`](https://github.com/andre-richter/qemu-exit)
+
+Version `1.0.x` of the crate has been released! 
+
+`qemu-exit` is a crate that allows you quit a running QEMU session with a user-defined exit code. This is useful for `unit` or `integration tests` of bare-metal software (e.g. OS kernels) that are tested in QEMU.
+
+The crate supports the following architectures:
+- `AArch64`
+- `RISC-V 64`
+- `x86_64`
+
+If you want to see the crate in action, you can have a look at how it is used in the [rust-raspberrypi-OS-tutorials project](https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials/tree/master/13_integrated_testing#quitting-qemu-with-user-defined-exit-codes).
+
+Shoutout to [@phil-opp](https://github.com/phil-opp) for inspiring this crate with his original blog post and to [@Skallwar](https://github.com/Skallwar) for his many contributions.
+
 ## Join Us?
 
 Are you interested in Rust-based operating system development? Our `rust-osdev` organization is always open to new members and new projects. Just let us know if you want to join! A good way for getting in touch is our [gitter channel](https://gitter.im/rust-osdev/Lobby).
 
 
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