Add get method

Author: jackpan123

src/main/java/com/amihaiemil/docker/Containers.java

@@ -104,8 +104,8 @@ Container create(
 
     /**
      * Get this container.<br><br>
-     * @param containerId of the Container
-     * @return this container object.
+     * @param containerId Id of the Container
+     * @return This container object.
      */
     Container get(final String containerId);
 }

src/main/java/com/amihaiemil/docker/RtContainers.java

@@ -162,11 +162,11 @@ URI baseUri() {
     /**
      * Get this container.<br><br>
      *
-     * @param containerId of the Container
-     * @return this container object.
+     * @param containerId Id of the Container
+     * @return This container object.
      */
     @Override
-    public Container get(String containerId) {
+    public Container get(final String containerId) {
         return new RtContainer(
             Json.createObjectBuilder().build(),
             this.client,