Adjusted docs to benefit from recent s-c-build improvements

spring-cloud-function-deployer/src/main/java/org/springframework/cloud/function/deployer/EnableFunctionDeployer.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.function.deployer;
+
+import java.lang.annotation.Documented;
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.context.annotation.Import;
+
+/**
+ * Annotation to be used on a Spring Boot application if it wants to deploy a jar file
+ * containing a function definition.
+ * @author Dave Syer
+ *
+ * @deprecated since 3.0. No longer required. Deployer will kick in simply by including
+ * spring-cloud-function-deployer dependency
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Import(FunctionDeployerConfiguration.class)
+@Deprecated
+public @interface EnableFunctionDeployer {
+
+}