I've added more content to the quick start guide for contributors and it deals with the process of writing a contribution, up till the point of writing the title. The next parts I'm working on are about using the editor, adding tags and choosing your reward option.
Making a contribution
To start writing a post, click on the blue button with a + that’s in the top right area of the page
or click + New Contribution in the left side menu
or click New Contribution in the top right menu
You will be taken to a page where you are asked to choose a category. Pick the category that’s most suitable for your contribution. You can read the rules that are shown for each category to make the right decision. Once you’ve picked the right category, click I understand. Proceed.
This will take you to a page where you can write your post and input all the other metadata that’s needed.
Choose GitHub Project
The first field you’ll see on the page is for the GitHub Project that you are contributing to. Enter keywords included in the GitHub repository name of the Open Source project you are writing about and press enter to choose from a list of projects pulled from GitHub.
Select pull requests (optional)
If you’ve submitted pull requests to the project, a list of all the pull requests you submitted on GitHub will show up here. Choose the ones that are directly related to the work you are writing about.
Title of your contribution
Next, you’ll have to type in the title of your contribution. Learn about the best practices of writing Contribution Titles.
Some links are inactive because they will link to future pages still being developed.
Visit the GitHub repository.
Posted on Utopian.io - Rewarding Open Source Contributors