Add related projects to README

Author: fornwall

README.md

@@ -3,13 +3,18 @@
 [![Crates.io](https://img.shields.io/crates/v/rust-script.svg)](https://crates.io/crates/rust-script)
 
 # rust-script
-
 Run Rust files and expressions without any setup or compilation necessary.
 
 See the [documentation at rust-script.org](https://rust-script.org).
 
 NOTE: `rust-script` is a maintained fork of the excellent (but abandoned) [cargo-script](https://github.com/DanielKeep/cargo-script) project.
 
-## License
+## Related projects
+- [cargo-script](https://github.com/DanielKeep/cargo-script) - the unmaintained project that `rust-script` was forked from.
+- [cargo-eval](https://github.com/reitermarkus/cargo-eval/) - maintained fork of `cargo-script`.
+- [cargo-play](https://github.com/fanzeyi/cargo-play) - local Rust playground.
+- [runner](https://github.com/stevedonovan/runner/) - tool for running Rust snippets.
+- [scriptisto](https://github.com/igor-petruk/scriptisto) - language-agnostic "shebang interpreter" that enables you to write scripts in compiled languages.
 
+## License
 `rust-script` is primarily distributed under the terms of both the [MIT license](LICENSE-MIT) and the [Apache License (Version 2.0)](LICENSE-APACHE).