Updated the Page name

Author: skmahe1077

docs/versioned/eventing/sinks/README.md

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 function: how-to
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-# sinks
+# Sinks
 
 When you create an event source, you can specify a _sink_ where events are sent to from the source. A sink is an _Addressable_ or a _Callable_ resource that can receive incoming events from other resources. Knative Services, Channels, and Brokers are all examples of sinks.