Polish and fix test starter descriptions

starter/spring-boot-starter-activemq-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = ""
+description = "Starter for testing using Apache ActiveMQ and JMS"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-activemq"))

starter/spring-boot-starter-batch-jdbc-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = "Starter testing using Spring Batch with JDBC"
+description = "Starter for testing using Spring Batch with JDBC"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-jdbc-test"))

starter/spring-boot-starter-batch-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = "Starter testing using Spring Batch"
+description = "Starter for testing using Spring Batch"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-batch"))

starter/spring-boot-starter-graphql-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = "Starter testing Spring GraphQL"
+description = "Starter for testing Spring GraphQL"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-graphql"))

starter/spring-boot-starter-restclient-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = "Starter testing Spring's blocking HTTP clients (RestClient, RestTemplate and HTTP Service Clients)"
+description = "Starter for testing Spring's blocking HTTP clients (RestClient, RestTemplate and HTTP Service Clients)"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-restclient"))

starter/spring-boot-starter-webclient-test/build.gradle

@@ -18,7 +18,7 @@ plugins {
 	id "org.springframework.boot.starter"
 }
 
-description = "Starter testing Spring's reactive HTTP clients (WebClient and HTTP Service Clients)"
+description = "Starter for testing Spring's reactive HTTP clients (WebClient and HTTP Service Clients)"
 
 dependencies {
 	api(project(":starter:spring-boot-starter-jackson-test"))