[🚀 Feature]: Improve README Files for contributing to code examples

[harsha509]

Feature and motivation

Each language-example folder contains a README.md file, but they lack detailed information on prerequisites, installation steps, and contribution guidelines.

readme.md files are in here

https://github.com/SeleniumHQ/seleniumhq.github.io/tree/trunk/examples

Usage example

Need precise steps in readme.md for each language examples:

pre-requisites:

• Install and configure Java
• install and Configure Maven

Python:

• Install and configure python
• Install and configure pip

....