Fix dependency management blocks for HTML rendering

Author: acogoluegnes

src/docs/asciidoc/getting-started.adoc

@@ -134,7 +134,7 @@ you need to include a dependency to Reactor RabbitMQ.
 
 For Gradle:
 
-[source,groovy,subs="attributes"]
+[source,groovy,subs="attributes,specialcharacters"]
 --------
 dependencies {
     compile "io.projectreactor.rabbitmq:reactor-rabbitmq:{appversion}"
@@ -144,7 +144,7 @@ dependencies {
 
 For Maven:
 
-[source,xml,subs="attributes"]
+[source,xml,subs="attributes,specialcharacters"]
 --------
 <dependency>
     <groupId>io.projectreactor.rabbitmq</groupId>