Add rc-zip logo to main crate, too

rc-zip/README.md

@@ -1,5 +1,13 @@
+[![MIT OR Apache-2.0 licensed](https://img.shields.io/badge/license-MIT+Apache_2.0-blue.svg)](./LICENSE)
+[![Crates.io](https://img.shields.io/crates/v/rc-zip)](https://crates.io/crates/rc-zip)
+[![docs.rs](https://docs.rs/rc-zip/badge.svg)](https://docs.rs/rc-zip)
+
 # rc-zip
 
+![The rc-zip logo: a person with long hair and nice brows being opened from the bottom up with a zipper. On dark backgrounds, you can see a skull being revealed. On light backgrounds you cannot.](https://github.com/user-attachments/assets/5fecd286-9518-4a72-b544-56675d7f31f6)
+
+_Logo by [MisiasArt](https://www.deviantart.com/misiasart)_
+
 This is the core rc-zip crate, containing types, parses, and state machines,
 and that doesn't do any I/O by itself.