add basic react nodeviewrenderer

packages/react/src/NodeViewContent.tsx

@@ -0,0 +1,18 @@
+import React from 'react'
+
+export const NodeViewContent: React.FC = props => {
+
+  // TODO
+  const isEditable = true
+
+  return (
+    <div
+      data-node-view-content=""
+      contentEditable={isEditable}
+      style={{
+        whiteSpace: 'pre-wrap'
+      }}
+    />
+  )
+
+}