Update README.md with DeepRank2 link

README.md

@@ -1,3 +1,17 @@
+# :warning: Archiving Note
+
+This repository is no longer being maintained and has been archived for historical purposes. 
+
+We have now developed [DeepRank2](https://github.com/DeepRank/deeprank2), an improved and unified version of DeepRank, [DeepRank-GNN](https://github.com/DeepRank/Deeprank-GNN), and [DeepRank-Mut](https://github.com/DeepRank/DeepRank-Mut).
+
+:sparkles: DeepRank2 allows for transformation and storage of 3D representations of both protein-protein interfaces (PPIs) and protein single-residue variants (SRVs) into either graphs or volumetric grids containing structural and physico-chemical information. These can be used for training neural networks for a variety of patterns of interest, using either our pre-implemented training pipeline for graph neural networks (GNNs) or convolutional neural networks (CNNs) or external pipelines.
+
+- :wrench: **Pull Requests** at github.com/DeepRank/deeprank2
+- :bug: **Bugs**: Reports of bugs can be filed agains our new repo github.com/DeepRank/deeprank2
+- :star: **Feature Requests**: Add your request or discuss the project w/ the community at github.com/DeepRank/deeprank2
+
+We look forward to seeing you in our new spaces!
+
 # DeepRank
 [![PyPI](https://img.shields.io/pypi/v/deeprank)](https://pypi.org/project/deeprank/)
 [![Documentation Status](https://readthedocs.org/projects/deeprank/badge/?version=latest)](http://deeprank.readthedocs.io/?badge=latest)
@@ -23,6 +37,8 @@ DeepRank is a general, configurable deep learning framework for data mining prot
 
 DeepRank contains useful APIs for pre-processing PPIs data, computing features and targets, as well as training and testing CNN models.
 
+We recently developed [DeepRank2](https://github.com/DeepRank/deeprank2), an upgraded package that includes all the functionalities of DeepRank and more.
+
 #### Features:
 
 - Predefined atom-level and residue-level PPI feature types