Update README.md

README.md

-
 # dicom-upload
 
 [![Build Status](https://travis-ci.org/jsc/dicom-upload.svg?branch=master)](https://travis-ci.org/jsc/dicom_upload)
@@ -14,6 +13,11 @@ You can install using `pip`:
 ```bash
 pip install dicom_upload
 ```
+or from this GitLab directly
+
+```bash
+pip install git+https://gitlab.version.fz-juelich.de/jupyter4jsc/j4j_extras/dicom-upload.git
+```
 
 Or if you use jupyterlab: