feat: Update appointment section text for better relevance

[akshay0611]

Summary: This PR updates the content of the appointment section to improve clarity, relevance, and engagement. The changes aim to better communicate the value proposition of booking an appointment.

Changes Made:

• Rewrote the content of <p class="section-text"> to highlight the benefits of booking an appointment and the personalized services offered.
• Ensured alignment with existing CSS styles and framework conventions.

Testing:

• Verified responsiveness across different screen sizes.
• Ensured proper rendering of the appointment section and its content.

Related Issue: Closes #18