update README.md

README.md

@@ -1,7 +1,30 @@
 # KeyHunter
 [![CI Check](https://github.com/DonIsaac/keyhunter/actions/workflows/pipeline.yml/badge.svg)](https://github.com/DonIsaac/keyhunter/actions/workflows/pipeline.yml)
 
-Check for leaked API keys and secrets on public websites
+Check for leaked API keys and secrets on public websites.
+
+## Installation
+You can install KeyHunter as a Crate from crates.io:
+```sh
+cargo install keyhunter --all-features
+``` 
+
+You can also use it as a library:
+```toml
+[dependencies]
+keyhunter = "0.1.0"
+```
+
+## Usage
+Provide KeyHunter with a URL to start scanning from. It will visit all pages
+on the same domain that URL links to, find all scripts referenced by those
+pages, and check them for leaked API keys and secrets.
+
+```sh
+keyhunter https://example.com
+```
+
+Run `keyhunter --help` for more information.
 
 ## Disclamer