Allow to configure the pagination

Change-Id: I2259c2438137c72c275572c1da3a08c1255e6a63
diff --git a/README.rst b/README.rst
index 18bc492..df9d1d1 100644
--- a/README.rst
+++ b/README.rst
@@ -54,6 +54,7 @@
             pool: SAS7K2
         audit: 
           enabled: false
+        osapi_max_limit: 500
 
     cinder:
       volume: