update README with corrected links

README.md

@@ -10,8 +10,7 @@ http://onem2m.org/technical/latest-drafts
 The repository will also contain a file "base_ontology.owl" which contains the latest version of the base ontology.
 
 For use in an ontology browser, e.g. Protege, one needs to use the link to the RAW version of the file, e.g. 
-https://git.onem2m.org/MAS/BaseOntology/raw/master/oneM2M_Base_Ontology-V_0_5_0.owl
-
+https://git.onem2m.org/MAS/BaseOntology/raw/master/base_ontology.owl
 General
 -----
  The classes and properties of the oneM2M base ontology are described in TS-0012.