Add README for tour example

examples/tour/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 publish = false
 
 [dependencies]
-iced = { path = "../.." }
+iced = { path = "../..", features = ["debug"] }
 env_logger = "0.7"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]

examples/tour/README.md

@@ -0,0 +1,28 @@
+## Tour
+
+A simple UI tour that can run both on native platforms and the web! It showcases different widgets that can be built using Iced.
+
+The __[`main`]__ file contains all the code of the example! All the cross-platform GUI is defined in terms of __state__, __messages__, __update logic__ and __view logic__.
+
+<div align="center">
+  <a href="https://gfycat.com/politeadorableiberianmole">
+    <img src="https://thumbs.gfycat.com/PoliteAdorableIberianmole-small.gif">
+  </a>
+</div>
+
+[`main`]: src/main.rs
+[`iced_winit`]: ../../winit
+[`iced_native`]: ../../native
+[`iced_wgpu`]: ../../wgpu
+[`iced_web`]: ../../web
+[`winit`]: https://github.com/rust-windowing/winit
+[`wgpu`]: https://github.com/gfx-rs/wgpu-rs
+
+You can run the native version with `cargo run`:
+```
+cargo run --package tour
+```
+
+The web version can be run by following [the usage instructions of `iced_web`] or by accessing [iced.rs](https://iced.rs/)!
+
+[the usage instructions of `iced_web`]: ../../web#usage