#203 rework DOIs in README and CFF

close #203

CITATION.cff

@@ -53,7 +53,7 @@ identifiers:
     value: "swh:1:dir:1cac361814c2349e6113fc33f8a5a416624c744c"
   - description: Project in OSF to connect different project components
     type: doi
-    value: 10.17605/OSF.IO/NCP3D
+    value: 10.17605/OSF.IO/U9H23
 
 references:
   - authors:

README.md

 # Django backend ONE.UP
 
 [![coverage report](https://gitup.uni-potsdam.de/innohs/rest-api/badges/master/coverage.svg)](https://gitup.uni-potsdam.de/innohs/rest-api/commits/master)
-[![DOI](https://img.shields.io/badge/DOI-10.17605%2FOSF.IO%2FU9H23-blue)](https://doi.org/10.17605/OSF.IO/U9H23)
+[![DOI](https://img.shields.io/badge/DOI-10.17605/OSF.IO/NCP3D-blue)](https://doi.org/10.17605/OSF.IO/NCP3D )
 [![SWH](https://archive.softwareheritage.org/badge/origin/https://gitup.uni-potsdam.de/innohs/rest-api/)](https://archive.softwareheritage.org/browse/origin/?origin_url=https://gitup.uni-potsdam.de/innohs/rest-api)