Expose max-series-per-database parameter

Change-Id: Ia4433bf66ae8c405089936086411d24041b86220
diff --git a/README.rst b/README.rst
index e4fab7b..f401f74 100644
--- a/README.rst
+++ b/README.rst
@@ -54,6 +54,16 @@
         meta:
           dir: '/opt/influxdb/meta'
 
+InfluxDB server with customized parameters for the data service:
+
+.. code-block:: yaml
+
+    influxdb:
+      server:
+        enabled: true
+        data:
+          max_series_per_database: 20000000
+
 Single-node influxdb with an admin user:
 
 .. code-block:: yaml