Corrected Patient Portal (#472)

---------

Co-authored-by: Vamshi Maskuri <117595548+varshith257@users.noreply.github.com>

index.html

@@ -218,7 +218,7 @@
           <li><a href="#about">About</a></li>
           <li><a href="Html-Files/news.html">News</a></li>
           <a href="dex.html"><button>Service</button></a>
-          <li><a href="#patient-portal">patient Portal</a></li>
+          <li><a href="#patient-portal">Patient Portal</a></li>
           <li><a href="#doctors">Doctor</a></li>
           <li><a href="Html-Files/contact.html">Contact us</a></li>
           <a href="login.html"><button>Sign in/Sign up</button></a>