Add Send Array as Part of x-www-form-urlencoded (#12808)

* Add Send Array as Part of x-www-form-urlencoded

* Add README.md

spring-web-modules/spring-rest-http-3/src/main/java/com/baeldung/SpringBootRest3Application.java

@@ -0,0 +1,12 @@
+package com.baeldung;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringBootRest3Application {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootRest3Application.class, args);
+    }
+}