3.0.0

What's Changed

• Fix service worker, registration script and manifest bugs by @ArnaudLigny in #3
• Caching strategies and tests by @ArnaudLigny in #4
• Accessible snackbar and themed offline page by @ArnaudLigny in #5
• v3: options under the pwa key and namespaced files by @ArnaudLigny in #6
• Add a demo website deployed to GitHub Pages by @ArnaudLigny in #7

Full Changelog: 2.21.1...3.0.0