* the file  to verify the installation

* "add module_combination"

* add module_combination

* modified module_combination.md

* modify module_combination.md

* fix module_combination.md

* [CodeCamp] Add module_combination doc
 * fix init_weights not match num_base_priors

 * add module_combination about yolov5 using other model loss

* Update module_combination.md

* [CodeCamp] Add module_combination doc
* update

* [CodeCamp] Add module_combination doc

* [CodeMap]Add doc of module_combination

* refine doc

* refine doc

* update doc