Update projects.html

Author: gokulsatya

projects.html

@@ -23,6 +23,7 @@
 						<li><a href="resume.html">Resume</a></li>
 						<li><a href="internships.html">Work Experience</a></li>
 						<li><a href="volunteer.html">Volunteer Experience and Additional activities</a></li>
+						<li><a href="Certifications.html">Certifications</a></li>
 						<li><a href="skills.html">Skills</a></li>
 					</ul>
 				</nav>