Discoverity of GNOME

This will remain unchanged, since GNOME won't be in gitlab.com but rather in our own infraestructure.

Choose and get a project

1. They will go to the project list and choose a project

2. They will read the Readme presented
3. Then use the URL for cloning or the options for downloading as zip

Search task for newcomers

1. Go to labels
2. Choose newcomers

Contribute the first patch

In the UI

1. Create account
2. Click issue

3. Click create branch & click copy url

4. [locally] clone, fix & push

5. Click create merge request
6. Fix eventual reviews (possibility to use the online editor for commit messages or typos)
7. Force push

Then maintainer clicks "accept merge request"