Finishes the work started by @tbug in the PR linked above that was never updated to reflect the proposed changes and address the comments of the reviewers.
Also adds some text to address a few concerns raised in issue #668.
These methods are a bit confusing and it's not easy for a newcomer to know that they are complementary and which one does the opposite operation of the other. The issue tracker has a few questions related with this.
A simple link to the opposite operation inside the docs of both Parse and Format.
Also adds a new Tutorials section to the main documentation where the only available guide right now is the Parse and Format document.
Current PR Issues
Doesn't really address all the concerns of issue #668, since that requires a lot more work and some changes.