renaming the DSL to configurer

spring-5-security/src/main/java/com/baeldung/dsl/CustomConfigurerApplication.java

@@ -0,0 +1,13 @@
+package com.baeldung.dsl;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class CustomConfigurerApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(CustomConfigurerApplication.class, args);
+    }
+
+}