0.3.0 - docs build + fixes

What's Changed

• fix: Strip explicit port hints from topology examples by @pinin4fjords in #23
• docs: Add guide examples and fix layout engine issues by @pinin4fjords in #24
• chore: Bump version to 0.3.0 by @pinin4fjords in #25

Full Changelog: 0.2.2...0.3.0