Program built in Chapter 12 of The Rust Programming Language Book.

Consists of a main.rs file which runs the library code in lib.rs, where the bulk of the logic is kept for easier testing.
Comes with a test file poem.txt.

Options to run:

• cargo run search-term path-to-file
• cargo build --release -> builds an executable in target/release/ which can be run standalone

lib.rs:

Minigrep

minigrep is a light version of the popular command-line utility grep