.esm suffix for module bundle, marked/highlight.js are installed via npm

package.json

@@ -4,7 +4,8 @@
   "description": "The HTML Presentation Framework",
   "homepage": "https://revealjs.com",
   "subdomain": "revealjs",
-  "main": "js/reveal.js",
+  "main": "dist/reveal.js",
+  "module": "dist/reveal.esm.js",
   "license": "MIT",
   "scripts": {
     "test": "gulp test",
@@ -23,9 +24,16 @@
   "engines": {
     "node": ">=10.0.0"
   },
+  "keywords": [
+    "reveal",
+    "slides",
+    "presentation"
+  ],
   "devDependencies": {
     "@babel/core": "^7.8.7",
     "@babel/preset-env": "^7.8.7",
+    "@rollup/plugin-commonjs": "^11.1.0",
+    "@rollup/plugin-node-resolve": "^7.1.3",
     "babel-eslint": "^10.1.0",
     "colors": "^1.4.0",
     "core-js": "^3.6.5",
@@ -46,6 +54,10 @@
     "rollup-plugin-terser": "^5.3.0",
     "yargs": "^15.1.0"
   },
+  "dependencies": {
+    "highlight.js": "^10.0.1",
+    "marked": "^1.0.0"
+  },
   "browserslist": "> 0.5%, IE 11, not dead",
   "eslintConfig": {
     "env": {