Merge pull request #294 from ecmwf/Update_readme

Update readme

Author: mathleur

polytope_feature/version.py

@@ -1 +1 @@
-__version__ = "1.0.20"
+__version__ = "1.0.21"

readme.md

@@ -180,6 +180,10 @@ If this software is useful in your work, please consider citing our [paper](http
 
 > Leuridan, M., Hawkes, J., Smart, S., Danovaro, E., and Quintino, T., “Polytope: An Algorithm for Efficient Feature Extraction on Hypercubes”, <i>arXiv e-prints</i>, 2023. doi:10.48550/arXiv.2306.11553.
 
+Other papers in preparation include: 
+
+> Leuridan, M., Bradley, C., Hawkes, J., Quintino, T., and Schultz, M., "Performance Analysis of an Efficient Algorithm for Feature Extraction from Large Scale Meteorological Data Stores".
+
 ## Acknowledgements
 
 Past and current funding and support for **Polytope** is listed in the adjoining [Acknowledgements](./ACKNOWLEDGEMENTS.rst).