Updated README.md with instructions on importing directly from Github

[RyanNerd]

Closes #5

[RyanNerd]

Even with this PR there are many places where there is a dependency mismatch (usually where common is in the path and src is actually the correct path). This leaves the user to manually update the dependency library files (this is quite the task to get the examples to work). My recommendation is DO NOT MERGE until the dependencies are sorted out or until this library is in a state that it can be posted to https://pub.dartlang.org/