Add documentation how to install the module.
Add basic usage documentation.
Add more detailed example and explanation how mongobird works.
Add api documentation.
Add examples for the different api usage.
Fix indentation for numbered list.
Simplify example comments.
Add another hint for the lazy way used.
Extract function for counting a user in the users collection.
Fix referrence to the more explained example.
Use default user variable directly.
Add missing whitespace.
Add missing semicolons.
Merge pull request #20 from lxanders/add-documentation

Add documentation