Merge pull request #1 from shrisha/shrisha-elk-readme-fix

Fix plugin download URL in Readme.md

Author: shrisha

README.md

@@ -57,7 +57,7 @@ will be supported.
 
 ## Installation
 
-    ./bin/plugin --install jdbc --url http://xbib.org/repository/org/xbib/elasticsearch/plugin/elasticsearch-river-jdbc/1.5.0.4/elasticsearch-river-jdbc-1.5.0.4.zip
+    ./bin/plugin --install jdbc --url http://xbib.org/repository/org/xbib/elasticsearch/plugin/elasticsearch-river-jdbc/1.5.0.4/elasticsearch-river-jdbc-1.5.0.4-plugin.zip
 
 Do not forget to restart the node after installing.