Adding pytorch-forecasting to community examples (#4575)

PyTorch Forecasting is a new library that is designed for time series forecasting practitioners and researchers alike.
It is based on the awesome work on PyTorch Lightning. Thanks a lot for creating such an asset!

Have a look at the documentation for more information.

Co-authored-by: chaton <[email protected]>
Co-authored-by: Jeff Yang <[email protected]>

Author: 3 people

docs/source/community_examples.rst

@@ -16,4 +16,5 @@ Community Examples
 - `VAE Library of over 18+ VAE flavors <https://github.com/AntixK/PyTorch-VAE>`_.
 - `Transformers Question Answering (SQuAD) <https://github.com/tshrjn/Finetune-QA/>`_.
 - `Atlas: End-to-End 3D Scene Reconstruction from Posed Images <https://github.com/magicleap/atlas>`_.
-- `Self-Supervised Representation Learning (MoCo and BYOL) <https://github.com/untitled-ai/self_supervised>`_.
+- `Self-Supervised Representation Learning (MoCo and BYOL) <https://github.com/untitled-ai/self_supervised>`_.
+- `pytorch-forecasting: Time series forecasting package <https://github.com/jdb78/pytorch-forecasting>`_.