Update README.md

 - Use backticks to mark up file names - fixes Markdown parsing by jekyll which was getting broken by the <version> placeholder
 - Added backticks in another couple of places for env vars and code snippets

Author: wabson

README.md

@@ -40,8 +40,8 @@ Installation
 ------------
 
 The component has been developed to install on top of an existing Alfresco
-4.0, 4.1 or 4.2 installation. The javascript-console-repo-<version>.amp or
-javascript-console-share-<version>.amp needs to be installed into the Alfresco
+4.0, 4.1 or 4.2 installation. The `javascript-console-repo-<version>.amp` or
+`javascript-console-share-<version>.amp` needs to be installed into the Alfresco
 Repository / Share webapp using the Alfresco Module Management Tool:
 
     java -jar alfresco-mmt.jar install javascript-console-repo-<version>.amp /path/to/alfresco.war
@@ -60,14 +60,14 @@ project directory:
 
     mvn install
 
-The command builds two JAR files named javascript-console-repo-<version>.jar / 
-javascript-console-share-<version>.jar and javascript-console-repo-<version>-sources.jar /
-javascript-console-share-<version>-sources.jar as well as javascript-console-repo-<version>.amp /
-javascript-console-share-<version>.amp in the 'target' directory within your project.
+The command builds two JAR files named `javascript-console-repo-<version>.jar` / 
+`javascript-console-share-<version>.jar` and `javascript-console-repo-<version>-sources.jar` /
+`javascript-console-share-<version>-sources.jar` as well as `javascript-console-repo-<version>.amp` /
+`javascript-console-share-<version>.amp` in the `target` directory within your project.
 
 If you want to build the module so it can be installed and run in an Alfresco 4.0 / 4.1 server
 running on Java 6 you need to have a Java 6 JDK available. Either make sure that your JDK 6 is set
-as the default Java environment (PATH / JAVA_HOME environment variable) or run the build with the
+as the default Java environment (`PATH` / `JAVA_HOME` environment variable) or run the build with the
 following command from the base project directory:
 
     mvn install -P Java6-crossCompile -Djdk6.executable=/path/to/javac
@@ -81,7 +81,7 @@ Using the component
 - In the left-hand-side navigation, click *Javascript Console*
 - Enter Alfresco repository javascript code in the textarea at the top. Press 
   the execute button to run the script.
-- You can use the special print(..) javascript command to output messages to 
+- You can use the special `print(..)` javascript command to output messages to 
   the output window.
 - use Ctrl+Space for code completion. Note that only global objects and specific 
   variables (document, space, variables ending in ...node) are completed.