Merge pull request ezsystems#18 from ezsystems/readme

Added README.md

README.md

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+# eZ Platform Legacy Bridge
+
+This package integrates eZ Publish Legacy into eZ Platform. It is an extract of the Legacy backwards compatibility 
+features that were part of eZ Publish 5.x.
+
+It is meant to be installed as an addition to eZ Platform, starting from version 2015.03. [How to install and configure
+the Legacy Bridge](https://doc.ez.no/display/EZP/Installing+eZ+Publish+Legacy+on+top+of+eZ+Platform) is documented on doc.ez.no.