Tweak introductory and deployment documentation.

This commit rejiggers some documentation of `wasm-bindgen` in a few
significant ways:

* The main landing page now has text and links to the Game of Life
  tutorial and `wasm-pack`.
* The "whirlwind tour" was deleted as it wasn't really serving any
  purpose that the Game of Life plus the later references weren't already
  serving.
* The "no modules" example was renamed to "without a bundler"
* A dedicated section on "Deployment" was added which replaces the
  previous "No ES Modules" page. This is hopefully more descriptive and
  also prominently mentions the various options for deployment.

guide/src/introduction.md

@@ -1,15 +1,19 @@
 # Introduction
 
-`wasm-bindgen` facilitates high-level interactions between wasm modules and
-JavaScript.
+This book is about `wasm-bindgen`, a Rust library and CLI tool that facilitate
+high-level interactions between wasm modules and JavaScript. The `wasm-bindgen`
+tool and crate are only one part of the [Rust and WebAssembly
+ecosystem][rustwasm]. If you're not familiar already with `wasm-bindgen` it's
+recommended to start by reading the [Game of Life tutorial][gol]. If you're
+curious about `wasm-pack`, you can find that [documentation here][wasm-pack].
 
-This project is sort of half polyfill for features like the [host bindings
-proposal][host] and half features for empowering high-level interactions between
-JS and wasm-compiled code (currently mostly from Rust). More specifically this
-project allows JS/wasm to communicate with strings, JS objects, classes, etc, as
-opposed to purely integers and floats. Using `wasm-bindgen` for example you can
-define a JS class in Rust or take a string from JS or return one. The
-functionality is growing as well!
+The `wasm-bindgen` tool is sort of half polyfill for features like the [host
+bindings proposal][host] and half features for empowering high-level
+interactions between JS and wasm-compiled code (currently mostly from Rust).
+More specifically this project allows JS/wasm to communicate with strings, JS
+objects, classes, etc, as opposed to purely integers and floats. Using
+`wasm-bindgen` for example you can define a JS class in Rust or take a string
+from JS or return one. The functionality is growing as well!
 
 Currently this tool is Rust-focused but the underlying foundation is
 language-independent, and it's hoping that over time as this tool stabilizes
@@ -22,10 +26,12 @@ Notable features of this project includes:
 * Exporting Rust functionality to JS such as classes, functions, etc.
 * Working with rich types like strings, numbers, classes, closures, and objects
   rather than simply `u32` and floats.
+* Automatically generating TypeScript bindings for Rust code being consumed by
+  JS.
 
-This project is still relatively new but feedback is of course always
-welcome! If you're curious about the design plus even more information about
-what this crate can do, check out the [design doc].
+With the addition of [`wasm-pack`] you can run the gamut from running Rust on
+the web locally, publishing it as part of a larger application, or even
+publishing Rust-compiled-to-WebAssembly on NPM!
 
 [host]: https://github.com/WebAssembly/host-bindings
 [design doc]: https://rustwasm.github.io/wasm-bindgen/contributing/design/index.html
@@ -33,3 +39,6 @@ what this crate can do, check out the [design doc].
 [console-log]: https://github.com/rustwasm/wasm-bindgen/tree/master/examples/console_log
 [perf-ex]: https://github.com/rustwasm/wasm-bindgen/tree/master/examples/performance
 [hello-online]: https://webassembly.studio/?f=gzubao6tg3
+[rustwasm]: https://rustwasm.github.io/
+[gol]: https://rustwasm.github.io/book/
+[wasm-pack]: https://rustwasm.github.io/wasm-pack/book/