Added the generateStubs docs

spring-cloud-contract-verifier/src/test/groovy/org/springframework/cloud/contract/verifier/converter/YamlContractConverterSpec.groovy

@@ -799,6 +799,7 @@ inProgress: false
 		and:
 			List<Contract> contracts = [Contract.make {
 				request {
+					inProgress()
 					url("/foo")
 					method("PUT")
 					headers {
@@ -828,6 +829,7 @@ inProgress: false
 		then:
 			yamlContracts.size() == 1
 			YamlContract yamlContract = yamlContracts.first()
+			yamlContract.inProgress == true
 			yamlContract.request.url == "/foo"
 			yamlContract.request.method == "PUT"
 			yamlContract.request.headers.find { it.key == "foo" && it.value == "bar" }

spring-cloud-contract-verifier/src/test/resources/yml/contract.yml

@@ -10,6 +10,9 @@ priority: 8
 #tag::ignored[]
 ignored: true
 #end::ignored[]
+#tag::in_progress[]
+inProgress: true
+#end::in_progress[]
 #tag::request[]
 request:
   #end::request[]