Enhance README and approach contents

Author: huangsam

README.md

@@ -2,6 +2,10 @@
 
 Your naming pal, written in Go 🐶
 
+> It's a dog. It's a friend. It's a Namigo!
+
+[Click here](./docs/approach.md) to learn more about the implementation details.
+
 <img src="./images/namigo.jpeg" alt="Namigo" width="250px" />
 
 ## Getting started

docs/approach.md

@@ -32,3 +32,7 @@
 - Scrape <https://crates.io>
 - [Package Info](https://crates.io/api/v1/crates/anipwatch)
 - [Package Search](https://crates.io/api/v1/crates?page=1&per_page=10&q=height)
+
+## Java
+
+- TBD