Enhanced Explanation of HTTPS and SSL/TLS Handshake

This pull request enriches the existing documentation by detailing the advancements and improvements introduced in TLS 1.3, which is crucial for enhancing HTTPS security. With the adoption of TLS 1.3 increasing, understanding its impact on security and efficiency is vital for developers, network administrators, and security professionals.

Changes Made:
Added a new section on the Overview of TLS 1.3: Introduces the evolution of TLS protocols and the emergence of TLS 1.3.
Detailed Major Improvements in TLS 1.3: Discusses the streamlined handshake process, enhanced security features, and improved privacy measures.
Expanded Technical Details: Provides an in-depth look at the TLS 1.3 handshake process, cryptographic enhancements, and a comparison with previous versions.
Outlined Implementation Challenges: Offers guidance on implementing TLS 1.3 and transitioning from older versions.
Described Impact on Users and Developers: Explains the direct benefits and improvements in user security and developer capabilities.
Benefits:
This contribution significantly increases the understanding of TLS 1.3's role in securing web communications, aiding in more informed implementation choices and fostering a deeper understanding of web security protocols among the community.

Call to Action:
I encourage all contributors and maintainers to review this addition and provide feedback. Your insights will help refine the content to better serve as a comprehensive resource on HTTPS security.