Updated JLab extension installation instructions
"\n",
"```\n",
"conda install -c conda-forge jupyterlab\n",
- "jupyter labextension install @pyviz/jupyterlab_holoviews\n",
+ "jupyter labextension install @pyviz/jupyterlab_pyviz\n",
"```\n",
"\n",
"Once you have installed JupyterLab and the extension launch it with:\n",
