Update notebooks.rst

docs/notebooks.rst

@@ -14,5 +14,5 @@ We provide a series of tutorials for you to get started using TDC:
 `105 <https://github.com/mims-harvard/TDC/blob/master/tutorials/TDC_105_Oracle.ipynb>`_                                     Molecule Generation Oracles
 `106 <https://github.com/mims-harvard/TDC/blob/master/tutorials/TDC_106_BenchmarkGroup_Submission_Demo.ipynb>`_             Benchmark submission
 `DGL <https://github.com/mims-harvard/TDC/blob/master/tutorials/DGL_User_Group_Demo.ipynb>`_                                Demo for DGL GNN User Group Meeting
-`201 <https://colab.research.google.com/drive/1xTgBwKUfP2b8j6Fqh28M2GUp2ScfENMX?usp=sharing>`_TDC-2 Resource and Multi-modal Single-Cell API
+`201 <https://colab.research.google.com/drive/1xTgBwKUfP2b8j6Fqh28M2GUp2ScfENMX?usp=sharing>`_                              TDC-2 Resource and Multi-modal Single-Cell API
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