chore: README badges

README.md

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 # dmlcloud
+[![](https://img.shields.io/pypi/v/dmlcloud)](https://pypi.org/project/dmlcloud/)
+[![](https://img.shields.io/github/actions/workflow/status/sehoffmann/dmlcloud/run_tests.yml?logo=github)](https://github.com/sehoffmann/dmlcloud/actions/workflows/run_tests.yml)
+[![](https://img.shields.io/github/actions/workflow/status/sehoffmann/dmlcloud/run_linting.yml?label=lint&logo=github)](https://github.com/sehoffmann/dmlcloud/actions/workflows/run_linting.yml)
 Flexibel, easy-to-use, opinionated
 
 **dmlcloud** is a library for distributed training of deep learning models with torch. Its main aim is to do all these tiny little tedious things that everybody just copy pastes over and over again, while still giving you full control over the training loop and maximum flexibility.