Add quickstart for pytorch flavor (mlflow#10737)

Signed-off-by: chenmoneygithub <chen.qian@databricks.com>

docs/source/deep-learning/pytorch/index.rst

@@ -18,6 +18,30 @@ in MLflow we provide a set of APIs for:
 - **Experiments Management**: Store your PyTorch experiments in MLflow server, and you can view and share them from MLflow UI.
 - **Effortless Deployment**: Deploy PyTorch models with simple API calls, catering to a variety of production environments.
 
+5 Minute Quick Start with the MLflow PyTorch Flavor
+----------------------------------------------------
+
+To get a quick overview of how to use the MLflow PyTorch flavor, please read the quickstart guide. It
+will walk you through the basics of tracking PyTorch experiments.
+
+.. raw:: html
+
+    <a href="quickstart/pytorch_quickstart.html" class="download-btn">View the Quickstart</a>
+
+To download the PyTorch quickstart notebook to run in your environment, click the respective link below:
+
+.. raw:: html
+
+    <a href="https://raw.githubusercontent.com/mlflow/mlflow/master/docs/source/deep-learning/pytorch/quickstart/pytorch_quickstart.ipynb"
+    class="notebook-download-btn">Download the Quickstart of MLflow's PyTorch Integration</a><br>
+
+.. toctree::
+    :maxdepth: 1
+    :hidden:
+
+    quickstart/pytorch_quickstart.ipynb
+
+
 `Developer Guide of PyTorch with MLflow <guide/index.html>`_
 -------------------------------------------------------------