diff --git a/README.md b/README.md
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-# docker-xwiki
\ No newline at end of file
+# docker-xwiki
+
+Create a xwiki instance with jetty webserver
+
+Use the following ENV when running :
+- MYSQL_USER : the mysql user
+- MYSQL_PASSWORD : the mysql password
+- MYSQL_HOST : the hostname of the linked database container