Merge pull request #402 from elimerl/patch-2

Could'nt -> Couldn't

code/beginner/tutorial2-surface/src/lib.rs

@@ -131,7 +131,7 @@ pub async fn run() {
     cfg_if::cfg_if! {
         if #[cfg(target_arch = "wasm32")] {
             std::panic::set_hook(Box::new(console_error_panic_hook::hook));
-            console_log::init_with_level(log::Level::Warn).expect("Could't initialize logger");
+            console_log::init_with_level(log::Level::Warn).expect("Couldn't initialize logger");
         } else {
             env_logger::init();
         }