Polishing.

Add OkHttp3 to reference documentation. Add java hint to code fences.

See gh-45.

src/main/asciidoc/reference/authentication.adoc

@@ -23,6 +23,7 @@ OS access levels.
  
 .Externalizing `vault.token` to a properties file 
 ====
+[source, java]
 ----
 @PropertySource("configuration.properties"),
 @Configuration
@@ -98,8 +99,9 @@ class AppConfig extends AbstractVaultConfiguration {
 
     @Override
     public ClientAuthentication clientAuthentication() {
-        AppIdAuthenticationOptions options = AppIdAuthenticationOptions.builder().appId("myapp") //
-                .userIdMechanism(new IpAddressUserId()) //
+        AppIdAuthenticationOptions options = AppIdAuthenticationOptions.builder()
+                .appId("myapp")
+                .userIdMechanism(new IpAddressUserId())
                 .build();
 
         return new AppIdAuthentication(options, vaultClient());
@@ -136,8 +138,9 @@ class AppConfig extends AbstractVaultConfiguration {
     @Override
     public ClientAuthentication clientAuthentication() {
 
-        AppIdAuthenticationOptions options = AppIdAuthenticationOptions.builder().appId("myapp") //
-                .userIdMechanism(new MacAddressUserId()) //
+        AppIdAuthenticationOptions options = AppIdAuthenticationOptions.builder()
+                .appId("myapp")
+                .userIdMechanism(new MacAddressUserId())
                 .build();
 
         return new AppIdAuthentication(options, vaultClient());

src/main/asciidoc/reference/client-support.adoc

@@ -12,6 +12,7 @@ Spring Vault supports following HTTP clients:
 * Apache Http Components
 * Netty
 * OkHttp 2
+* OkHttp 3
 
 Using a specific client requires the according dependency to be available on the classpath
 so Spring Vault can use the available client for communicating with Vault.
@@ -64,3 +65,14 @@ dependencies to your project. You can omit the version number if using
 </dependency>
 ----
 ====
+
+.Square OkHttp 3
+====
+[source, xml]
+----
+<dependency>
+  <groupId>com.squareup.okhttp3</groupId>
+  <artifactId>okhttp</artifactId>
+</dependency>
+----
+====