[Data Liberation] Markdown <-> Blocks converters

WP_Markdown_Consumer and WP_Markdown_Producer enable two-way conversion
between Markdown and the block markup.

Author: adamziel

packages/playground/data-liberation-markdown/plugin.php

@@ -0,0 +1,5 @@
+<?php
+/**
+ * Plugin Name: Data Liberation – Markdown importer
+ */
+require_once __DIR__ . '/src/bootstrap.php';