How to start contributing to Google Cloud Java Client Libraries?

[giohdz]

I want to start doing open-source contribution. I want to try to contribute to Google's Cloud Java Client Libraries but I see that the contributing docs are somewhat unfamiliar with what I have to do.

Link : https://github.com/googleapis/google-cloud-java

What have I done so far?

- I have forked the repo and have my own branch setup on my local machine like any other contribution process on Github.

- I've installed Google's Cloud successfully

Once I load the project, I have many projects that are available to contribute to 

How do I access or load a project properly to be able to code. For instance, let's say I want to work on this project but I see that I'm still not able to load the project properly. 

Would I need to cd into the "java-vision"? If so, what do I do next to load it up? I don't see much documentation regarding setting up for contribution and I want to make sure the steps I take are correct.