Update install.md

Author: BalazsSzekeres

install.md

@@ -6,4 +6,9 @@
 4. In the same terminal windows typing `jupyter notebook` will start the notebook server.
 5. To get started with the dataset, follow the instructions in `1_frame_information.ipynb`. 
 
-In case the interactive plots do not show up in the notebooks use: `jupyter nbextension install --py --sys-prefix k3d`
+In case the interactive plots do not show up in the notebooks use:
+```
+jupyter nbextension install --py --sys-prefix k3d
+jupyter nbextension enable --py --sys-prefix k3d
+jupyter labextension install k3d
+```