Add options for compilation on systems that lack libappindicator3

docs/guide/src/hello_world.md

@@ -81,6 +81,13 @@ $ cargo add dioxus --features desktop
 
 It's very important to add `dioxus` with the `desktop` feature for this example. The `dioxus` crate is a batteries-include crate that combines a bunch of utility crates together, ensuring compatibility of the most important parts of the ecosystem. Under the hood, the `dioxus` crate configures various renderers, hooks, debug tooling, and more. The `desktop` feature ensures the we only depend on the smallest set of required crates to compile and render.
 
+If you system does not provide the `libappindicator3` library, like Debian/bullseye, you can enable the replacement `ayatana` with an additional flag:
+
+```shell
+$ # On Debian/bullseye use:
+$ cargo add dioxus --features desktop --features ayatana
+```
+
 If you plan to develop extensions for the `Dioxus` ecosystem, please use the `dioxus` crate with the `core` feature to limit the amount of dependencies your project brings in.
 
 ### Our first app
@@ -143,5 +150,3 @@ For now, just know that `Scope` lets you store state with hooks and render eleme
 ## Moving on
 
 Congrats! You've built your first desktop application with Dioxus. Next, we're going to learn about the basics of building interactive user interfaces.
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