Add first business article and article layout

node_modules/@clack/core/README.md

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+# `@clack/core`
+
+Clack contains low-level primitives for implementing your own command-line applications.
+
+Currently, `TextPrompt`, `SelectPrompt`, and `ConfirmPrompt` are exposed as well as the base `Prompt` class.
+
+Each `Prompt` accepts a `render` function.
+
+```js
+import { TextPrompt, isCancel } from '@clack/core';
+
+const p = new TextPrompt({
+  render() {
+    return `What's your name?\n${this.userInputWithCursor}`;
+  },
+});
+
+const name = await p.prompt();
+if (isCancel(name)) {
+  process.exit(0);
+}
+```