v1.6.0 Hard Fork Overview / Start building on Cardano

What's Changed

• Add Cardano hard forks timeline page by @katomm in #69 available at https://cardano.org/hardforks
• Update Docusaurus to 3.4.0 by @katomm in #68
• Replace developers mark down page with a more appealing page by @katomm in #70 available at https://cardano.org/developers
• Improve start building on Cardano layout by @katomm in #71
• FYI: @MyBaBB and @RayTracedObserver started looking into #67

Full Changelog: v1.5.0...v1.6.0