How to run Microsoft Learn example 'Build your GCC C/C++ app'?

I'm trying to follow this simple Microsoft Learn example for Azure DevOps:

https://learn.microsoft.com/en-us/azure/devops/pipelines/apps/c-cpp/gcc?view=azure-devops&tabs=vsts#get-sample-app-code

but I can't follow it.

For Azure Repos, step 1 states:

On the Code page for your project, select the option to Import repository.

Where is the 'Code' page and where is the Import option? (Note I already have a repo in my project).

Later, in section 'Set up continuous integration' step 1 says:

Under the Build and Release menu, select Builds then New to create a new build definition.

Where is the 'Build and Release' menu?

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