Made example's CMakeLists.txt file a little more tutorial like.

examples/CMakeLists.txt

@@ -10,10 +10,20 @@ PROJECT(examples)
 
 include(../dlib/cmake)
 
-# We are going to use a macro to add all the example programs.  However,
-# usually you will only create one executable in your cmake projects.
-# Therefore, you would just need to invoke ADD_EXECUTABLE() and
-# TARGET_LINK_LIBRARIES() as shown below.  
+# Tell CMake to compile a program.  We do this with the ADD_EXECUTABLE()
+# statement which takes the name of the output executable and then a list of
+# .cpp files to compile.  Here each example consists of only one .cpp file but
+# in general you will make programs that const of many .cpp files.
+ADD_EXECUTABLE(assignment_learning_ex assignment_learning_ex.cpp)
+# Then we tell it to link with dlib.
+TARGET_LINK_LIBRARIES(assignment_learning_ex dlib)
+
+
+
+
+# Since there are a lot of examples I'm going to use a macro to simply this
+# CMakeLists.txt file.  However, usually you will create only one executable in
+# your cmake projects and use the syntax shown above.
 MACRO(add_example name)
    ADD_EXECUTABLE(${name} ${name}.cpp)
    TARGET_LINK_LIBRARIES(${name} dlib )
@@ -21,7 +31,6 @@ ENDMACRO()
 
 
 #here we apply our macros 
-add_example(assignment_learning_ex)
 add_example(bayes_net_ex)
 add_example(bayes_net_from_disk_ex)
 add_example(bayes_net_gui_ex)