Enhance README.md with Emojis for Clarity

[SOBANEJAZ]

Issue Description:
I would like to contribute to this repository by enhancing the README.md for improved clarity and aesthetics. My suggestion is to add emojis to the existing headings in the README to make it more visually appealing and user-friendly.

Proposed Emojis for Headings:

Here are emojis for the additional headings:

1. Introduction 🌟
2. Configuration ⚙️
3. Administration 🛡️
4. Missing features ❌
5. Upgrading 🚀
6. Upgrades in 2.1.0 🆕
7. Upgrades in 2.0.0 🔄

These emojis can help add some visual flair to your README.md and make it more engaging for readers. If you have any more headings or need further assistance, feel free to let me know!

I believe that adding emojis to the headings will not only make the documentation more engaging but also help readers quickly identify and understand the content of each section.

Please assign this issue to me for the hacktoberfest. :)