update doc of zenodoapi lib

.zenodoci/zenodoapi.py

@@ -9,12 +9,13 @@ class ZenodoAPI:
         """
         Manages the communication with the (sandbox.)zenodo REST API through the Python request library.
         This class is **EXCLUSIVELY** developed to be used within a CI/CD pipeline and to **EXCLUSIVELY PERFORM**
-         five tasks within the (sandbox.)zenodo api environment:
+         six tasks within the (sandbox.)zenodo api environment:
 
           - Create a new deposit,
           - Create a new version of an existing deposit,
           - Upload files to a specific Zenodo entry,
-          - Upload information to the entry (Zenodo compulsory deposit information)
+          - Erase (old version) files from an entry (when creating a new_version entry and uploading new_version files),
+          - Upload information to the entry (Zenodo compulsory deposit information),
           - Publish an entry