Implement Hello World with Interesting Computing Fact

[traali]

This PR adds a simple Python console application that prints 'Hello World!' followed by an interesting fact about the first computer 'bug' in 1947.

Review Summary:

• Code Compliance: main.py correctly outputs the expected text as per README spec.
• No Bugs: Code runs cleanly, no syntax errors, uses standard Python practices (e.g., main guard).
• Style Guide: Follows PEP 8 basics; concise and readable.
• Spec Alignment: Matches prerequisites, setup, and expected output exactly. No dependencies needed.

Tested output:

Hello World!
Did you know? The first computer "bug" was an actual moth found in a Harvard Mark II computer in 1947!

Ready for merge! 🚀