Fix favicon

springboot-petclinic-server/src/main/resources/templates/index.html

@@ -8,6 +8,9 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge"/>
     <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=0, minimal-ui"/>
     <!-- The above 4 meta tags *must* come first in the head; any other head content must come *after* these tags -->
+
+    <link rel="shortcut icon" type="image/x-icon" th:href="@{/images/favicon.png}"/>
+
     <title>PetClinic :: a Spring Framework demonstration</title>
     <link rel="stylesheet" th:href="@{/bootstrap/css/bootstrap.min.css}"/>
     <link rel="stylesheet" th:href="@{/css/petclinic.css}"/>