name class more accurately

Author: elichad

rocrate_validator/profiles/five-safes-crate/must/15_metadata_file.py

@@ -23,7 +23,7 @@
 
 
 @requirement(name="RO-Crate context version")
-class FileDescriptorExistence(PyFunctionCheck):
+class FileDescriptorContextVersion(PyFunctionCheck):
     """The RO-Crate metadata file MUST include the RO-Crate context version 1.2
     (or later minor version) in `@context`"""