Repository: peterheesterman/chit (language: rust)

Issue:
List Nix installation instructions in README
As of [today](https://github.com/NixOS/nixpkgs/pull/61428) [Nix](https://nixos.org/nix/) now includes a package for Chit. It will probably take a few days before the package is available on the published channel, but once it is, it would be nice to have Nix installation instructions in the README.


Discussion / hints:
I am not a `Nix` user at the moment. I will need to have a look at how it works and then add the instructions. 👍 

Feel free to teach me how via a PR. 🤣 **Or** I would love a link to another project that does a really good job of explaining it i can use as a template. 💯 

Fix patch:
diff --git a/README.md b/README.md
index 7cd133e..01a7043 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,9 @@ Cargo installed already? `cargo install chit`.
 
 If not... [find out how!](https://doc.rust-lang.org/cargo/getting-started/installation.html)
 
+#### Nix package manager
+
+`nix-env -iA nixpkgs.chit`
 
 ### Use
 


Test patch: