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diff --git a/nglview/tests/notebooks/nglview_readme_img.ipynb b/nglview/tests/notebooks/nglview_readme_img.ipynb
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+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "import nglview as nv\n",
+    "import pytraj as pt # mdtraj, MDAnalysis, simpletraj are also supported\n",
+    "\n",
+    "traj = pt.load(nv.datafiles.TRR, nv.datafiles.PDB)\n",
+    "view = nv.show_pytraj(traj)\n",
+    "view"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.4.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}