Update Header Section to Include Contact Information

**Project name**
ArtGallery

**Project link**
https://github.com/Ayushparikh-code/Web-dev-mini-projects/tree/main/Art-Gallery

**Improvements suggested**
1.Update Header Section:
Description: Add a "Contact Me" link in the header to facilitate user communication.
Expected Outcome: Users should find it easy to reach out or provide feedback.
2.Enhance Header Styling:
Description: Improve the visual styling of the header for better user experience and responsiveness.
Expected Outcome: A more attractive and functional header that adapts well to different screen sizes.