1.4.0

What's Changed

• docs(readme): a header in the site's style by @Dimagious in #11
• docs(readme): absolute srcset so dark images load in the catalog by @Dimagious in #12
• test(heatmap): pin streak and colour semantics before 1.4.0 by @Dimagious in #13
• 1.4.0: nested paths, heatmap fields, layers, range, today and auto scale, streak thresholds, days off, progress columns, tile covers by @Dimagious in #14

Full Changelog: 1.3.0...1.4.0