Add config docs for desktop and TUI

docs-src/0.4/en/CLI/configure.md

@@ -192,3 +192,100 @@ script = []
 [[web.proxy]]
 backend = "http://localhost:8000/api/"
 ```
+
+## Desktop and TUI
+
+For the desktop and TUI (terminal user interface) renderers,
+Dioxus bundles your app using `dx bundle` and the [tauri-bundler](https://docs.rs/crate/tauri-bundler/latest).
+
+You can check out the [tauri-bundler docs.rs](https://docs.rs/tauri-bundler/latest/tauri_bundler/bundle/index.html).
+This covers all the different settings. Keep in mind that `FooSettings` becomes just `foo` in the TOML.
+
+Tauri uses a JSON file for the configuration, but Dioxus uses TOML. So this tauri-bundler example:
+```json
+{
+  "package": {
+    "productName": "Your Awesome App",
+    "version": "0.1.0"
+  },
+  "tauri": {
+    "bundle": {
+      "active": true,
+      "identifier": "com.my.app",
+      "shortDescription": "",
+      "longDescription": "",
+      "copyright": "Copyright (c) You 2021. All rights reserved.",
+      "icon": [
+        "icons/32x32.png",
+        "icons/128x128.png",
+        "icons/128x128@2x.png",
+        "icons/icon.icns",
+        "icons/icon.ico"
+      ],
+      "resources": ["./assets/**/*.png"],
+      "deb": {
+        "depends": ["debian-dependency1", "debian-dependency2"]
+      },
+      "macOS": {
+        "frameworks": [],
+        "minimumSystemVersion": "10.11",
+        "license": "./LICENSE"
+      },
+      "externalBin": ["./sidecar-app"]
+    }
+  }
+}
+```
+
+needs to be translated to TOML.
+
+However, Dioxus has Dioxus-specific mandatory TOML fields that we need to include as well. 
+We can see what fields are mandatory from the documentation above.
+
+Additionally, we also need to remove `tauri` from the TOML headers.
+
+This is our final `Dioxus.toml`:
+
+```toml
+# From Dioxus
+[application]
+name = "Your Awesome App"
+default_platform = "desktop"
+
+# You might only be running on desktop, but the following "web" values are still required.
+[web.app]
+title = "Awesome"
+
+[web.watcher]
+
+[web.resource.dev]
+
+# From the tauri-bundler.
+[package]
+productName = "Your Awesome App"
+version = "0.1.0"
+
+[bundle]
+active = true
+identifier = "com.my.app"
+shortDescription = ""
+longDescription = ""
+copyright = "Copyright (c) You 2021. All rights reserved."
+icon = [
+  "icons/32x32.png",
+  "icons/128x128.png",
+  "icons/128x128@2x.png",
+  "icons/icon.icns",
+  "icons/icon.ico"
+]
+resources = [ "./assets/**/*.png" ]
+externalBin = [ "./sidecar-app" ]
+
+[bundle.deb]
+depends = [ "debian-dependency1", "debian-dependency2" ]
+
+[bundle.macOS]
+frameworks = [ ]
+minimumSystemVersion = "10.11"
+license = "./LICENSE"
+```