chore: update documentation

plugins/websocket/src/lib.rs

@@ -274,27 +274,36 @@ async fn send(
     }
 }
 
+/// Initializes the plugin with the default [`Builder`], i.e. without a custom TLS [`Connector`].
 pub fn init<R: Runtime>() -> TauriPlugin<R> {
     Builder::default().build()
 }
 
+/// Builder for the WebSocket plugin, used to configure a custom TLS [`Connector`] before calling [`Builder::build`].
 #[derive(Default)]
 pub struct Builder {
     tls_connector: Option<Connector>,
 }
 
 impl Builder {
+    /// Creates a new [`Builder`] with no custom TLS [`Connector`] configured.
     pub fn new() -> Self {
         Self {
             tls_connector: None,
         }
     }
 
+    /// Sets the TLS [`Connector`] used to establish `wss://` connections.
+    ///
+    /// When this is not called (or is called with [`Connector::Plain`]) and a `rustls-tls` or
+    /// `rustls-tls-native-roots` feature is enabled, [`Builder::build`] installs `rustls`'s `ring`
+    /// crypto provider as the process default if none is installed yet.
     pub fn tls_connector(mut self, connector: Connector) -> Self {
         self.tls_connector.replace(connector);
         self
     }
 
+    /// Builds the plugin, registering the `connect` and `send` commands and the shared connection state.
     pub fn build<R: Runtime>(self) -> TauriPlugin<R> {
         PluginBuilder::new("websocket")
             .invoke_handler(tauri::generate_handler![connect, send])