Use fenced code blocks in README

Author: bernd

README.md

@@ -8,74 +8,86 @@ JadConfig is a minimalistic annotation-driven configuration parsing framework fo
 
 Here is a quick example of a Java class used as configuration bean:
 
-    public class ConfigurationBean {
-      @Parameter("my.stringList")
-      public List<String> myList = new ArrayList<String>();
+```java
+public class ConfigurationBean {
+  @Parameter("my.stringList")
+  public List<String> myList = new ArrayList<String>();
 
-      @Parameter("my.integer")
-      public int myInteger = 1;
+  @Parameter("my.integer")
+  public int myInteger = 1;
 
-      @Parameter(value = "my.uri", required = true)
-      public URI myURI;
-    }
+  @Parameter(value = "my.uri", required = true)
+  public URI myURI;
+}
+```
 
 and how you initialize it with JadConfig:
 
-    ConfigurationBean bean = new ConfigurationBean();
-    new JadConfig(new PropertiesRepository("my.properties"), bean).process();
+```java
+ConfigurationBean bean = new ConfigurationBean();
+new JadConfig(new PropertiesRepository("my.properties"), bean).process();
 
-    Assert.assertNotNull(bean.myList);
+Assert.assertNotNull(bean.myList);
+```
 
 
 You can also use multiple repositories as source for your configuration (first match wins):
 
-    ConfigurationBean bean = new ConfigurationBean();
-    new JadConfig(
-            Arrays.asList(
-                new EnvironmentRepository(),
-                new PropertiesRepository("my.properties")
-            ),
-            bean)
-        .process();
+```java
+ConfigurationBean bean = new ConfigurationBean();
+new JadConfig(
+        Arrays.asList(
+            new EnvironmentRepository(),
+            new PropertiesRepository("my.properties")
+        ),
+        bean)
+    .process();
 
-    Assert.assertNotNull(bean.myList);
+Assert.assertNotNull(bean.myList);
+```
 
 ### Joda-Time
 
 JadConfig optionally supports [Joda-Time](http://www.joda.org/joda-time/). In order to use it just add the Joda-Time
 dependency to your `pom.xml`:
 
-    <dependency>
-        <groupId>joda-time</groupId>
-        <artifactId>joda-time</artifactId>
-        <version>2.9</version>
-    </dependency>
-
+```xml
+<dependency>
+    <groupId>joda-time</groupId>
+    <artifactId>joda-time</artifactId>
+    <version>2.9</version>
+</dependency>
+```
 
 And register `JodaTimeConverterFactory` with the JadConfig instance:
 
+```java
     JadConfig jadConfig = new JadConfig(repository, configurationBean);
     jadConfig.addConverterFactory(new JodaTimeConverterFactory());
     jadConfig.process();
+```
 
 
 ### Guava
 
 JadConfig optionally supports some data types from [Google Guava](https://github.com/google/guava/). In order to use
 it just add the Google Guava dependency to your `pom.xml`:
 
-    <dependency>
-        <groupId>com.google.guava</groupId>
-        <artifactId>guava</artifactId>
-        <version>18.0</version>
-    </dependency>
-
+```xml
+<dependency>
+    <groupId>com.google.guava</groupId>
+    <artifactId>guava</artifactId>
+    <version>18.0</version>
+</dependency>
+```
 
 And register `GuavaConverterFactory` with the JadConfig instance:
 
-    JadConfig jadConfig = new JadConfig(repository, configurationBean);
-    jadConfig.addConverterFactory(new GuavaConverterFactory());
-    jadConfig.process();
+```java
+JadConfig jadConfig = new JadConfig(repository, configurationBean);
+jadConfig.addConverterFactory(new GuavaConverterFactory());
+jadConfig.process();
+```
 
 
 Currently the following data types are being supported:
@@ -95,39 +107,45 @@ Currently the following data types are being supported:
 JadConfig optionally supports registering named bindings in [Google Guice](https://github.com/google/guice/). In order
 to use it just add the Google Guice dependency to your `pom.xml`:
 
-    <dependency>
-        <groupId>com.google.inject</groupId>
-        <artifactId>guice</artifactId>
-        <version>4.0</version>
-    </dependency>
+```xml
+<dependency>
+    <groupId>com.google.inject</groupId>
+    <artifactId>guice</artifactId>
+    <version>4.0</version>
+</dependency>
+```
 
 
 And register `NamedConfigParametersModule` with the Guice Injector:
 
+```java
     Injector injector = Guice.createInjector(new NamedConfigParametersModule(Collections.singleton(configurationBean)));
+```
 
 
 The name of the bindings are identical to the `@Parameter` name.
 
 Example:
 
-    public class MyConfigBean {
-        @Parameter("my.custom.config")
-        public String customConfig;
-    }
+```java
+public class MyConfigBean {
+    @Parameter("my.custom.config")
+    public String customConfig;
+}
 
-    // Create injector and register NamedConfigParametersModule.
-    // [...]
+// Create injector and register NamedConfigParametersModule.
+// [...]
 
-    public class MyClass {
-        @Inject
-        public MyClass(@Named("my.custom.config") String customConfig) {
-            // ...
-        }
+public class MyClass {
+    @Inject
+    public MyClass(@Named("my.custom.config") String customConfig) {
+        // ...
     }
+}
 
-    // MyClass will be instantiated with the value of customConfig from the MyConfigBean instance.
-    MyClass myClass = injector.getInstance(MyClass.class);
+// MyClass will be instantiated with the value of customConfig from the MyConfigBean instance.
+MyClass myClass = injector.getInstance(MyClass.class);
+```
 
 Please note that nullable properties which should be injected by Guice have to be annotated with `@Nullable`,
 see [UseNullable](https://github.com/google/guice/wiki/UseNullable) in the Guice wiki for details.
@@ -137,11 +155,13 @@ see [UseNullable](https://github.com/google/guice/wiki/UseNullable) in the Guice
 
 To use JadConfig in your project using Maven add the following lines into the dependencies section of your `pom.xml`:
 
-    <dependency>
-        <groupId>org.graylog</groupId>
-        <artifactId>jadconfig</artifactId>
-        <version>1.0.0</version>
-    </dependency>
+```xml
+<dependency>
+    <groupId>org.graylog</groupId>
+    <artifactId>jadconfig</artifactId>
+    <version>1.0.0</version>
+</dependency>
+```
 
 
 ## Support