List rusty-man in readme
This patch adds rusty-man, a rustdoc documentation viewer for the
terminal, to the list of cursive applications in the readme.
@@ -96,6 +96,7 @@ Here are some cool applications using cursive:
* [ripasso](https://github.com/cortex/ripasso): A simple password manager written in Rust.
* [clock-cli](https://github.com/TianyiShi2001/clock-cli-rs): A clock with stopwatch and countdown timer functionalities
* [sudoku-tui](https://github.com/TianyiShi2001/sudoku-tui): Play sudoku on the command line.
+* [rusty-man](https://sr.ht/~ireas/rusty-man): Browse rustdoc documentation
## Goals
