feature: add swagger openapi

src/main/java/com/eventsourcing/configuration/SwaggerOpenAPIConfiguration.java

@@ -0,0 +1,15 @@
+package com.eventsourcing.configuration;
+
+
+import io.swagger.v3.oas.annotations.OpenAPIDefinition;
+import io.swagger.v3.oas.annotations.info.Contact;
+import io.swagger.v3.oas.annotations.info.Info;
+import org.springframework.stereotype.Component;
+
+
+@OpenAPIDefinition(info = @Info(title = "Spring CQRS and Event Sourcing Microservice",
+        description = "Spring Postgresql MongoDB Kafka CQRS and Event Sourcing Microservice",
+        contact = @Contact(name = "Alexander Bryksin", email = "alexander.bryksin@yandex.ru", url = "https://github.com/AleksK1NG")))
+@Component
+public class SwaggerOpenAPIConfiguration {
+}