adding npm and license indicators

README.md

@@ -2,6 +2,18 @@
   <a href="https://svelte.dev">
 	<img alt="Cybernetically enhanced web apps: Svelte" src="https://svelte-assets.surge.sh/banner.png">
   </a>
+
+  <a href="https://www.npmjs.com/package/svelte">
+    <img src="https://img.shields.io/npm/v/svelte.svg" alt="npm version">
+  </a>
+
+  <a href="https://packagephobia.now.sh/result?p=svelte">
+    <img src="https://packagephobia.now.sh/badge?p=svelte" alt="install size">
+  </a>
+
+  <a href="https://github.com/svelte/svelte/blob/master/LICENSE.md">
+    <img src="https://img.shields.io/npm/l/svelte.svg" alt="license">
+  </a>
 </p>