Add a VXLAN sample guide in the sample_app_ug directory.
It includes:
- Add the overlay networking picture with svg format.
- Add the TEP termination framework picture with svg format.
- Add the tep_termination.rst file
- Change the index.rst file for the above pictures index.
Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Signed-off-by: Thomas Long <thomas.long@intel.com>
Acked-by: Marvin Liu <yong.liu@intel.com>