Update README.md (#493)

Author: pancetta

README.md

@@ -102,7 +102,8 @@ The current software release can be cited using Zenodo:
 
 `pySDC` code was originally developed by [Robert Speck (@pancetta)](https://github.com/pancetta),
 and is now maintained and developed by a small community of scientists interested in SDC methods.
-Checkout the [Changelog](./CHANGELOG.md) to see pySDC's evolution since 2016.
+Checkout the [Changelog](./CHANGELOG.md) to see pySDC's evolution since 2016. It has a
+software management plan (SWP), too, see [here](https://smw.dsw.elixir-europe.org/wizard/projects/c3dda921-b7b0-4f4d-b5dc-778b9780552d).
 
 Any contribution is dearly welcome! If you want to contribute, please take the time to read our [Contribution Guidelines](./CONTRIBUTING.md)
 (and don't forget to take a peek at our nice [Code of Conduct](./CODE_OF_CONDUCT.md) :wink:).