Update article.md

'allow to' -> 'allow us to'
optional comma

1-js/10-error-handling/1-try-catch/article.md

@@ -668,4 +668,4 @@ We can also generate our own errors using the `throw` operator. Technically, the
 
 *Rethrowing* is a very important pattern of error handling: a `catch` block usually expects and knows how to handle the particular error type, so it should rethrow errors it doesn't know.
 
-Even if we don't have `try..catch`, most environments allow to setup a "global" error handler to catch errors that "fall out". In-browser that's `window.onerror`.
+Even if we don't have `try..catch`, most environments allow us to setup a "global" error handler to catch errors that "fall out". In-browser, that's `window.onerror`.