Merge pull request #1087 from zouyee/aggerated-api-servers

Automatic merge from submit-queue. .

update aggregated-api-servers.md link

update aggregated-api-servers.md link which has been moved to api-machinery

federation/federated-api-servers.md

@@ -1,6 +1,6 @@
 # Federated API Servers
 
-Moved to [aggregated-api-servers.md](./aggregated-api-servers.md) since cluster
+Moved to [aggregated-api-servers.md](../api-machinery/aggregated-api-servers.md) since cluster
 federation stole the word "federation" from this effort and it was very confusing.
 
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