Added readme files

chapter-10/readme.md

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+## Chapter 10
+
+This is the sample code for chapter 10 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Streaming data
+- Understanding Web Streams
+- What’s the big deal with Web Streams?
+- Readable Streams
+- Supercharging your page render times
+- The future of the Web Stream API
+
+The sample code in this chapter explores:
+
+- [Comparison: With and without web streams](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-10/with-and-without-streaming)
+- [Streaming Rendering](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-10/streaming-render)

chapter-3/readme.md

@@ -4,6 +4,15 @@ This is the sample code for chapter 3 of the book *Progressive Web Apps in Actio
 
 This chapter covers the following:
 
-- Caching using Service Workers
-- Precaching
-- A sample application that will be used throughout the book
+- The basics of HTTP caching
+- The basics of caching using Service Workers
+- Precaching during Service Worker installation
+- Intercept and cache
+- A performance comparison: before and after caching
+- Diving deeper into Service Worker caching
+
+The sample code in this chapter explores:
+
+- [A cache first approach](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-3/cachefirst)
+- [Precaching during Service Worker installation](https://github.com/deanhume/progressive-web-apps-book/tree/master/precache)
+- [Progressive Times](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-3/progressive-times) - The base code for the sample application that is used throughout the book

chapter-4/readme.md

@@ -4,6 +4,13 @@ This is the sample code for chapter 4 of the book *Progressive Web Apps in Actio
 
 This chapter covers the following:
 
+- Intercepting Network Requests
 - The Fetch API
 - The Fetch event
-- Advanced use cases for the fetch event
+- The service worker lifecycle
+- Fetch in action
+
+The sample code in this chapter explores:
+
+- [An example using WebP images](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-4/WebP-Images)
+- [An example using the Save-Data header](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-4/save-data)

chapter-5/readme.md

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+## Chapter 5
+
+This is the sample code for chapter 5 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Look and feel
+- The Web App Manifest
+- Add to homescreen
+- Customizing the icons
+- Add a splash screen
+- Set the launch style and URL
+- Advanced Add to Homescreen usage
+- Cancelling the prompt
+- Determining usage
+- Deferring the prompt
+- Debugging your manifest file
+
+
+The sample code in this chapter explores:
+
+- [How to set up your manifest file to improve the look and feel of your PWA](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-5/look-and-feel)

chapter-6/readme.md

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+## Chapter 6
+
+This is the sample code for chapter 6 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Push Notifications
+- Engaging with your users
+- Engagement Insight: The Weather Channel
+- Browser Support
+- Your first push notification
+- Subscribing to notifications
+- Sending notifications
+- Receiving notifications and interacting with them
+- Unsubscribing
+- Third party push notifications
+
+The sample code in this chapter explores:
+
+- [A Node.js server side web push notification implementation](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-6/push-notifications)

chapter-7/readme.md

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+## Chapter 7
+
+This is the sample code for chapter 7 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Offline browsing
+- Unlocking the cache
+- Serving files while offline
+- A few gotchas to look out for
+- Cache isn’t forever
+- Offline User Experience
+- Tracking offline usage
+
+The sample code in this chapter explores:
+
+- [Offline Browsing](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-7/)

chapter-8/readme.md

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+## Chapter 8
+
+This is the sample code for chapter 8 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Building more resilient applications
+- Understanding Single Point of Failure
+- The Service Worker toolbox
+
+The sample code in this chapter explores:
+
+- [Building resilient web applications](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-8)

chapter-9/readme.md

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+## Chapter 9
+
+This is the sample code for chapter 9 of the book *Progressive Web Apps in Action**.  
+
+This chapter covers the following:
+
+- Keeping your data synchronised
+- Understanding BackgroundSync
+- Testing
+- Notifying the user
+- Periodic Synchronisation
+
+The sample code in this chapter explores:
+
+- [Using BackgroundSync](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-9)

readme.md

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+
+
+Sample code for each chapter:
+
+- Chapter 3 [Caching](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-3)
+- Chapter 4 [Intercepting Network Requests](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-4)
+- Chapter 5 [Look and feel](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-5)
+- Chapter 6 [Push notifications](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-6)
+- Chapter 7 [Offline browsing](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-7)
+- Chapter 8 [Building more resilient applications](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-8)
+- Chapter 9 [Keeping your data synchronised](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-9)
+- Chapter 10 [Streaming data](https://github.com/deanhume/progressive-web-apps-book/tree/master/chapter-10)