How to add my current project to an already existing GitHub repository

Question

I\'m very new to Git. I\'ve been searching for an answer, but I couldn\'t find one.

In my computer I have a project folder like this:

project_a
--some_fo         


        

Answer 1

Assume that I would like to add FreeRTOS repository, which URL is https://github.com/FreeRTOS/FreeRTOS-Kernel.git, into my repository, example URL is https://github.com/username/example as a submodule

git submodule add https://github.com/FreeRTOS/FreeRTOS-Kernel.git
git add .
git commit -m 'add a submodule'
git push

To clone using HTTPS:

git clone https://github.com/username/example.git --recurse-submodules

Using SSH:

git clone git@github.com:username/example.git --recurse-submodules

If you have downloaded the repo without using the --recurse-submodules argument, you need to run:

git submodule update --init --recursive