Restructure folder

slides/snippets/external.ts

@@ -0,0 +1,12 @@
+/* eslint-disable no-console */
+
+// #region snippet
+// Inside ./snippets/external.ts
+export function emptyArray<T>(length: number) {
+  return Array.from<T>({ length })
+}
+// #endregion snippet
+
+export function sayHello() {
+  console.log('Hello from snippets/external.ts')
+}