Write partial README and prepare Cargo.toml for publication.

Cargo.toml

@@ -2,9 +2,9 @@
 name = "ruxn"
 version = "0.1.0"
 authors = ["Morgan Arnold <morgan.arnold@proton.me>"]
-edition = "2021"
-description = "An implementation of the Uxn virtual machine written in Rust."
-repository = "https://github.com/CrashAndSideburns/ruxn"
+description = "An implementation of the Uxn stack-machine written in Rust."
+categories = ["emulators"]
+keywords = ["uxn", "varvara"]
+repository = "https://git.sr.ht/~mra/ruxn"
 license = "Unlicense"
-
-[dependencies]
+edition = "2021"

README.md

@@ -0,0 +1,29 @@
+# ruxn
+
+[![Crates.io](https://img.shields.io/crates/v/ruxn?style=flat-square&logo=rust)](https://crates.io/crates/ruxn)
+[![Crates.io](https://img.shields.io/crates/l/ruxn?style=flat-square)](./UNLICENSE)
+
+ruxn is an emulator for [the Uxn stack-machine](https://100r.co/site/uxn.html), designed to make the creation and emulation of Uxn-based computers simple and fun.
+
+# Installation
+
+Either run
+```
+cargo add ruxn
+```
+or modify your `Cargo.toml`
+```
+ruxn = "0.1.0"
+```
+
+# Usage
+
+<!-- TODO: Write usage section later, once user-facing API is more completely-defined. -->
+
+# Contributing
+
+Contributrions are welcome! Please open an issue or submit a pull request.
+
+# License
+
+This is free and unencumbered software released into the public domain. See the [UNLICENSE](./UNLICENSE) file or [unlicense.org](https://unlicense.org/) for details.