Fix The Navigation Of "about us" At Navbar

**Describe the bug**
If we click on "about us" in navbar it can not redirect to proper place.
Rather then we reach at "Meet Pet" section.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to Navbar
2. Click on About Us
3. See error

**Expected behavior**
We expected that if we click on "About Us" on navbar than it can redirect to About Us section which at the end of the home page.

**Screenshot **

**Desktop (please complete the following information):**
- OS: [window ]
- Browser [chrome]
- Version [11]

**Additional context**
Add any other context about the problem here.