doc: add comment to snippet command to indicate in final document if tne command was successfull or not

doc/doxygen/chapters/07out_of_core.doxy

@@ -47,10 +47,10 @@ All structures are in \ref API_Out_Of_Core .
 
 \section ExampleDiskCopy Examples: disk_copy
 
-\snippet disk_copy.c To be included
+\snippet disk_copy.c To be included. You should update doxygen if you see that text.
 
 \section ExampleDiskCompute Examples: disk_compute
 
-\snippet disk_compute.c To be included
+\snippet disk_compute.c To be included. You should update doxygen if you see that text.
 
 */

doc/doxygen/chapters/18scaling-vector-example.doxy

@@ -10,25 +10,25 @@
 
 \section MainApplication Main Application
 
-\snippet vector_scal_c.c To be included
+\snippet vector_scal_c.c To be included. You should update doxygen if you see that text.
 
 \section CPUKernel CPU Kernel
 
-\snippet vector_scal_cpu.c To be included
+\snippet vector_scal_cpu.c To be included. You should update doxygen if you see that text.
 
 \section CUDAKernel CUDA Kernel
 
-\snippet vector_scal_cuda.cu To be included
+\snippet vector_scal_cuda.cu To be included. You should update doxygen if you see that text.
 
 \section OpenCLKernel OpenCL Kernel
 
 \subsection InvokingtheKernel Invoking the Kernel
 
-\snippet vector_scal_opencl.c To be included
+\snippet vector_scal_opencl.c To be included. You should update doxygen if you see that text.
 
 \subsection SourceoftheKernel Source of the Kernel
 
-\snippet vector_scal_opencl_codelet.cl To be included
+\snippet vector_scal_opencl_codelet.cl To be included. You should update doxygen if you see that text.
 
 */