Improved the Spring Initializr section

Removed some redundancy in the links and added a manual option.
Also bumped the Spring Boot version to 2.4.3, to keep it current.

README.adoc

@@ -33,12 +33,8 @@ include::https://raw.githubusercontent.com/spring-guides/getting-started-macros/
 [[scratch]]
 == Starting with Spring Initializr
 
-For all Spring applications, you should start with the https://start.spring.io[Spring
-Initializr]. The Initializr offers a fast way to pull in all the dependencies you need for
-an application and does a lot of the set up for you. This example needs only the Websocket
-dependency.
+If you use Maven, visit the https://start.spring.io/#!type=maven-project&language=java&platformVersion=2.4.3.RELEASE&packaging=jar&jvmVersion=1.8&groupId=com.example&artifactId=messaging-stomp-websocket&name=messaging-stomp-websocket&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.messaging-stomp-websocket&dependencies=websocket[Spring Initializr] to generate a new project with the required dependency (Websocket).
 
-You can get a Maven build file with the necessary dependencies directly from the https://start.spring.io/#!type=maven-project&language=java&platformVersion=2.4.2.RELEASE&packaging=jar&jvmVersion=11&groupId=com.example&artifactId=messaging-stomp-websocket&name=messaging-stomp-websocket&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.messaging-stomp-websocket&dependencies=websocket[Spring Initializr].
 The following listing shows the `pom.xml` file that is created when you choose Maven:
 
 ====
@@ -48,7 +44,8 @@ include::initial/pom.xml[]
 ----
 ====
 
-You can get a Gradle build file with the necessary dependencies directly from the https://start.spring.io/#!type=gradle-project&language=java&platformVersion=2.4.2.RELEASE&packaging=jar&jvmVersion=11&groupId=com.example&artifactId=messaging-stomp-websocket&name=messaging-stomp-websocket&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.messaging-stomp-websocket&dependencies=websocket[Spring Initializr].
+If you use Gradle, visit the https://start.spring.io/#!type=gradle-project&language=java&platformVersion=2.4.3.RELEASE&packaging=jar&jvmVersion=1.8&groupId=com.example&artifactId=messaging-stomp-websocket&name=messaging-stomp-websocket&description=Demo%20project%20for%20Spring%20Boot&packageName=com.example.messaging-stomp-websocket&dependencies=websocket[Spring Initializr] to generate a new project with the required dependency (Websocket).
+
 The following listing shows the `build.gradle` file that is created when you choose Gradle:
 
 ====
@@ -58,6 +55,19 @@ include::initial/build.gradle[]
 ----
 ====
 
+=== Manual Initialization (optional)
+
+If you want to initialize the project manually rather than use the links shown earlier, follow the steps given below:
+
+. Navigate to https://start.spring.io.
+This service pulls in all the dependencies you need for an application and does most of the setup for you.
+. Choose either Gradle or Maven and the language you want to use. This guide assumes that you chose Java.
+. Click *Dependencies* and select *Websocket*.
+. Click *Generate*.
+. Download the resulting ZIP file, which is an archive of a web application that is configured with your choices.
+
+NOTE: If your IDE has the Spring Initializr integration, you can complete this process from your IDE.
+
 == Adding Dependencies
 
 The Spring Initializr does not provide everything you need in this case. For Maven, you

complete/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '2.4.2'
+	id 'org.springframework.boot' version '2.4.3'
 	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
 	id 'java'
 }

complete/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.2</version>
+		<version>2.4.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>

initial/build.gradle

@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '2.4.2'
+	id 'org.springframework.boot' version '2.4.3'
 	id 'io.spring.dependency-management' version '1.0.11.RELEASE'
 	id 'java'
 }

initial/pom.xml

@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.4.2</version>
+		<version>2.4.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>