How to make any needed changes to the models

# for the repo you are making the update from, you need to execute the below commands before pushing to master
cd .wall_e_models
# git add and commit and push whatever changes you need to push to wall_e_models
cd ../
git add .wall_e_models # so that the containing repo is also aware of the commit you just made to wall_e_models and can use those latest changes
git commit and push to the containing repo

# If you need to bring in changes from other repos that contain wall_e_models repo
git submodule update --remote
git add .wall_e_models
git commit
git push