Win10 Docker App - Learning center first steps are pretty confusing

I just installed docker on windows 10.
Im at the very first step of the learning center. I appreciate any help

How do I run a container?

At the 2.1 step:


About the “Clone the repository” part. Should i learn, sign up, download and install github to continue?
What does it mean “Clone the repository”?
There is this part that looks like a command: "git clone https: … "
What shall I do with that? Do i have to do both? Clone repo and put this command to somewhere?

At step 2.2:

( i have downloaded the github repository zip file… not sure this is what i have to do?!

I unzipped the content to a folder, and i have opened the folder in visual studio code.
What does it mean “Verify your docker file”?
What does it mean “Open the sample application in your ide”? I means open the folder? I do not see any application/ .exe file in the downloaded zip.

At step 2.3

Okay so i have to open a command line at put this “docker build …etc” command in it??
What does it mean “… in your project folder”? The folder what i downloaded from github?
Is this step necessery after step 2.2? Or this is an alternative way to build what i see in the downloaded folder?
It the learning center first step 1.0 i already have a “welcome-to-docker” image.
Why should i recreate it? Wouldn’t be a problem if i try to create an image with the same name?

Appreciate any help!
ps: i tried to attach more screenshot but the forum does not let me do it.

This is the screenshot for step 2.2:

This is the screenshot for step 2.3:

I am just starting at this as well. I’m on Windows 11 using WSL. Not sure what you are using. Or if you found an answer…

For me, I’m running Ubuntu and cloned the repository into my home folder. When I ran “docker compose up -d” inside the “multi-container-app” directory, it built everything there, and since Docker Desktop is linked to my WSL, it showed up in my containers on the Docker Desktop.