Added Markdown preview

node_modules/@lezer/markdown/build.js

@@ -0,0 +1,16 @@
+import {build, watch} from "@marijn/buildtool"
+import {fileURLToPath} from "url"
+import {dirname, join} from "path"
+
+let tsOptions = {
+  lib: ["es5", "es6"],
+  target: "es6"
+}
+
+let main = join(dirname(fileURLToPath(import.meta.url)), "src", "index.ts")
+
+if (process.argv.includes("--watch")) {
+  watch([main], [], {tsOptions})
+} else {
+  build(main, {tsOptions})
+}