Added plausible stats

docs/index.html

@@ -53,5 +53,6 @@
   <script src="https://unpkg.com/prismjs/components/prism-c.min.js"></script>
   <script src="https://unpkg.com/prismjs/components/prism-objectivec.min.js"></script>
   
+  <script defer data-domain="gravity-lang.org" src="https://plausible.io/js/script.js"></script>
 </body>
 </html>