update description in package.json

Author: mayank1513

lib/package.json

@@ -3,7 +3,7 @@
   "author": "Mayank Kumar Chaudhari <https://mayank-chaudhari.vercel.app>",
   "private": false,
   "version": "0.0.0",
-  "description": "",
+  "description": "ESBuild plugin to load webGL shaders from .glsl files.",
   "license": "MPL-2.0",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",