Merge branch 'develop'

Author: lukaszimmermann

README.md

@@ -4,3 +4,10 @@
 The documentation for this library is available here:
 
 https://lukas-zimmermann.gitbook.io/personal-health-train/domains/python-library-for-implementing-train-images
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+The Image is available on Docker Hub:
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+https://cloud.docker.com/u/personalhealthtrain/repository/docker/personalhealthtrain/train-api-python
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+This is the recommended version for a base of a Train image.