adding api definition in static files

backend/src/main/resources/static/index.html

@@ -0,0 +1,12 @@
+<!doctype html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <title>Clyde's api</title>
+    <script type="module" crossorigin src="/assets/index-BP8s9Pse.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-rZb_qAw7.css">
+  </head>
+  <body>
+    <div id="app"></div>
+  </body>
+</html>