v0.7.0

Fixed

• Page headings line up with the text below them instead of being indented.
• Pages use the full width on phones, with Bootstrap's normal side gutters, and are capped at 1024px on large screens, instead of a fixed 80% width.
• No page scrolls sideways on a phone: the colour picker link wraps, the Photoshop picker scrolls inside its own box, and the counter buttons and the Create React App command wrap.
• Text alignment uses Bootstrap's text-start, so pages no longer centre their text if the Tailwind CDN fails to load.