Update README.md

Author: aabherve

README.md

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+# Modelio Modules
+
+Modules are the means of defining, implementing and deploying extensions for Modelio. They can be seen as the equivalent of extensions for Firefox.
+They are used to extend and adapt Modelio Modeler by providing additional functionalities and services that meet your specific needs. 
+
+The current repository 
+
+Java Designer
+-------------
+
+Togaf
+-----
+
+
+MdaModeler
+----------