Fix typo

examples/cli.rs

@@ -56,7 +56,7 @@ fn main() {
     /* ANCHOR: main */
     let program_invocation = std::env::args().next().unwrap();
     let mut gtk_args = vec![program_invocation];
-    gtk_args.append(&mut args.gtk_options.clone());
+    gtk_args.extend(args.gtk_options.clone());
 
     let app = RelmApp::new("relm4.test.helloworld_cli");
     app.with_args(gtk_args).run::<AppModel>(());

src/cli.md

@@ -10,7 +10,7 @@ The easiest way is to just provide an empty `Vec` but this has the disadvantage
 We will now make it work in combination with the popular [`clap`](https://docs.rs/clap/latest/clap/) crate.
 To be precise we will use the `derive` feature which you can learn about in the [`clap` documentation](https://docs.rs/clap/latest/clap/_derive/_tutorial/chapter_0/index.html) but it works with the builder pattern too of course.
 
-To pass a `Vec` of GTK arguments we need to separate the arguments we want to consume ourselfes from those we want to pass to GTK.
+To pass a `Vec` of GTK arguments we need to separate the arguments we want to consume ourselves from those we want to pass to GTK.
 In `clap` you can achieve this using a combination of [`allow_hyphen_values`](https://docs.rs/clap/latest/clap/struct.Arg.html#method.allow_hyphen_values) and [`trailing_var_arg`](https://docs.rs/clap/latest/clap/struct.Arg.html#method.trailing_var_arg).
 ```rust,no_run,noplayground
 {{#include ../examples/cli.rs:args_struct }}