Update README.md

Author: smokemaker

README.md

@@ -1,4 +1,4 @@
 # alfresco-uml-data-modeller
 Eclipse plugin for creating Alfresco Data Model as UML in Papyrus UML Editor
 # Installation
-Eclipse update site URL: http://downloads.neologica.ru/eclipse/update-site/oxygen/
+Eclipse Oxygen update site URL: http://downloads.neologica.ru/eclipse/update-site/oxygen/