Merge branch 'philipp.goymann-master-patch-29241' into 'master'

Update README.md

See merge request !3

README.md

+# S3_Python_loosolab_Package
+
+This Package contains functions to work with the most recent Kubernetesobjects.
+
+**Installation**
+------------
+Clone the git Repository, create a python conda environment and run the setup.py.
+
+```bash
+$ git clone git@gitlab.gwdg.de:loosolab/software/loosolab-s3.git
+$ cd loosolab-s3/
+$ python setup.py install
+
+
+**Description of Functions**
+------------
+*check if bucket exists*
+
+```
+$ S3 --secret <secret>  --key <user name> --bucket_exists --bucketname <bucketname>
+```