fix format

Author: youtalk

public/index.html

@@ -23,9 +23,11 @@
     <div class="container">
       <h1>Autoware CI Metrics</h1>
 
-      <a href="https://github.com/autowarefoundation/autoware-ci-metrics">
-        https://github.com/autowarefoundation/autoware-ci-metrics
-      </a>
+      <p>
+        <a href="https://github.com/autowarefoundation/autoware-ci-metrics">
+          https://github.com/autowarefoundation/autoware-ci-metrics
+        </a>
+      </p>
 
       <h2>Total build times (build-main)</h2>
       <div id="build-time-chart"></div>