Update default.html

Author: swisskyrepo

_layouts/default.html

@@ -28,7 +28,7 @@ <h1 class="site-name"><a href="{{ site.baseurl }}/">{{ site.name }}<a class="dar
             <p class="site-description">{{ site.description }}</p>
           </div>
 
-          <nav>
+          <nav style="text-align:center">
             <a href="https://swisskyrepo.github.io/PayloadsAllTheThingsWeb/">📖PayloadsAllTheThings</a>
             <a href="https://swisskyrepo.github.io/HardwareAllTheThings/">🖥️HardwareAllTheThings</a>
             <a href="https://swisskyrepo.github.io/InternalAllTheThings/">📕InternalAllTheThings</a>