updated docs

docs/docs/main_menu.xml

@@ -187,7 +187,7 @@
             <name>Examples: C++</name>
             <sub>
                <item>
-                  <name>Deep Learning</name>
+                  <name>Deep Learning Introduction</name>
                   <link>dnn_mnist_ex.cpp.html</link>
                </item>
                <item>
@@ -198,6 +198,10 @@
                   <name>Deep Learning Imagenet Classifier </name>
                   <link>dnn_imagenet_ex.cpp.html</link>
                </item>
+               <item>
+                  <name>Deep Learning Imagenet Trainer </name>
+                  <link>dnn_imagenet_train_ex.cpp.html</link>
+               </item>
                <item>
                   <name>Deep Learning Inception</name>
                   <link>dnn_inception_ex.cpp.html</link>

docs/docs/ml.xml

@@ -435,6 +435,7 @@ Davis E. King. <a href="http://jmlr.csail.mit.edu/papers/volume10/king09a/king09
             <example>dnn_mnist_advanced_ex.cpp.html</example>
             <example>dnn_inception_ex.cpp.html</example>
             <example>dnn_imagenet_ex.cpp.html</example>
+            <example>dnn_imagenet_train_ex.cpp.html</example>
          </examples>
       </component>
 
@@ -453,6 +454,7 @@ Davis E. King. <a href="http://jmlr.csail.mit.edu/papers/volume10/king09a/king09
             <example>dnn_mnist_advanced_ex.cpp.html</example>
             <example>dnn_inception_ex.cpp.html</example>
             <example>dnn_imagenet_ex.cpp.html</example>
+            <example>dnn_imagenet_train_ex.cpp.html</example>
          </examples>
       </component>
 
@@ -554,6 +556,7 @@ Davis E. King. <a href="http://jmlr.csail.mit.edu/papers/volume10/king09a/king09
             <example>dnn_mnist_advanced_ex.cpp.html</example>
             <example>dnn_inception_ex.cpp.html</example>
             <example>dnn_imagenet_ex.cpp.html</example>
+            <example>dnn_imagenet_train_ex.cpp.html</example>
          </examples>
       </component>