v0.4.0

WARNING: This update contains breaking changes.

What's Changed

• Add Getting Started tutorial by @BenjaTK in #36
• Add online tutorials section to class documentation by @BenjaTK in #42
• Separate generation from rendering by @BenjaTK in #41
• Fix errors with the TileSet in getting_started.tscn by @BenjaTK in #43

Full Changelog: v0.3.3...v0.4.0