Update configure-aggregation-layer.md

Remove unnecessary period which takes an extra line.

Author: waltforme

content/en/docs/tasks/extend-kubernetes/configure-aggregation-layer.md

@@ -44,7 +44,7 @@ The rest of this section describes these steps in detail.
 
 The flow can be seen in the following diagram.
 
-![aggregation auth flows](/images/docs/aggregation-api-auth-flow.png).
+![aggregation auth flows](/images/docs/aggregation-api-auth-flow.png)
 
 The source for the above swimlanes can be found in the source of this document.