Fix typos in documentation

Signed-off-by: F. Emerson <[email protected]>

Author: tautologicc

docs/modules/ROOT/pages/spring-cloud-stream/bindings.adoc

@@ -25,7 +25,7 @@ public class SampleApplication {
 	}
 }
 ----
-The above example looks no different then any vanilla spring-boot application. It defines a single bean of type `Function`
+The above example looks no different than any vanilla spring-boot application. It defines a single bean of type `Function`
 and that is it. So, how does it become a spring-cloud-stream application?
 It becomes a spring-cloud-stream application simply because of the presence of spring-cloud-stream and binder dependencies
 and auto-configuration classes on the classpath, effectively setting the context for your boot application as a spring-cloud-stream application.

docs/modules/ROOT/pages/spring-cloud-stream/producing-and-consuming-messages.adoc

@@ -13,7 +13,7 @@ we recommend using functional implementations.
 [[overview]]
 === Overview
 
-Since Spring Cloud Stream v2.1, another alternative for defining _stream handlers_ and _sources_ is to use build-in
+Since Spring Cloud Stream v2.1, another alternative for defining _stream handlers_ and _sources_ is to use built-in
 support for https://cloud.spring.io/spring-cloud-function/[Spring Cloud Function] where they can be expressed as beans of
  type `java.util.function.[Supplier/Function/Consumer]`.