v1.3.4

What's Changed

• docs: add build-from-source guide by @AttilaRoemer in #31
• docs: rework README into landing page with flash/build entry links by @AttilaRoemer in #32
• ci: add docs link/reference checker workflow by @AttilaRoemer in #33
• ci: harden docs link/reference checker (review follow-up) by @AttilaRoemer in #34
• fix: detect no-bump from cog dry-run output, not exit code by @AttilaRoemer in #38

Full Changelog: v1.3.3...v1.3.4