[Released] Support for Kibana 5.5.3

Signed-off-by: amannocci <adrien.mannocci@gmail.com>

README.md

@@ -21,7 +21,7 @@ If this plugin isn't supported officially you can try to change the kibana versi
 You can test this plugin within a kibana docker container
 ```bash
 #!/bin/bash
-VERSION="5.5.2"
+VERSION="5.5.3"
 git clone https://github.com/amannocci/kibana-plugin-metric-percent plugins/kibana-plugin-metric-percent
 docker run --name kibana-$VERSION --net=host -e ELASTICSEARCH_URL=http://localhost:9200 -v $PWD/plugins:/usr/share/kibana/plugins -d kibana:$VERSION --plugins /usr/share/kibana/plugins
 ```