Fixed layout of commands

Author: Ann Witbrock

java/README.md

@@ -11,8 +11,8 @@ and check its signature as described there.
 Unzip it into your working directory and ensure the JAR files from the 
 unzipped directory are placed in your working directory:
 
-$ unzip rabbitmq-java-client-bin-*.zip
-$ cp rabbitmq-java-client-bin-*/*.jar ./
+    $ unzip rabbitmq-java-client-bin-*.zip
+    $ cp rabbitmq-java-client-bin-*/*.jar ./
 
 To compile you only need the Rabbitmq java client on the classpath.
 
@@ -25,21 +25,23 @@ use a semicolon instead of a colon to separate items in the classpath.
 
 [Tutorial one: "Hello World!"](http://www.rabbitmq.com/tutorial-one-java.html):
 
-$ javac -cp rabbitmq-client.jar Send.java Recv.java
+    $ javac -cp rabbitmq-client.jar Send.java Recv.java
 
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Send
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Recv
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Send
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Recv
 
 [Tutorial two: Work Queues](http://www.rabbitmq.com/tutorial-two-java.html):
 
-$ javac -cp rabbitmq-client.jar NewTask.java Worker.java
+    $ javac -cp rabbitmq-client.jar NewTask.java Worker.java
 
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar NewTask
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Worker
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar NewTask
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar Worker
 
 [Tutorial three: Publish/Subscribe](http://www.rabbitmq.com/tutorial-three-java.html)
 
-$ javac -cp rabbitmq-client.jar EmitLog.java ReceiveLogs.java
+    $ javac -cp rabbitmq-client.jar EmitLog.java ReceiveLogs.java
 
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar EmitLog
-$ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar ReceiveLogs
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar EmitLog
+    $ java -cp .:commons-io-1.2.jar:commons-cli-1.1.jar:rabbitmq-client.jar ReceiveLogs
+
+