zq750js nb variant

nb750js.ipynb

@@ -0,0 +1 @@
+{"cells": [{"cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [{"data": {"application/javascript": ["window.__zq750=1"]}, "metadata": {}, "output_type": "display_data"}], "source": ["x"]}], "metadata": {}, "nbformat": 4, "nbformat_minor": 5}