某git项目关联了一个submodule 如何更新该项目下的submodule

https://*.com/questions/5814319/git-submodule-push

$ cd your_submodule
$ git checkout master
$ git commit -a -m "commit in submodule"
$ git push
$ cd ..
$ git add your_submodule
$ git commit -m "Updated submodule"