Fix typo in `mark_language_loaded` doc comment (#7533)

Marshall Bowers created

This PR fixes a small typo in the `mark_language_loaded` doc comment.

Release Notes:

- N/A

Change summary

crates/language/src/language.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

crates/language/src/language.rs 🔗

@@ -1370,7 +1370,7 @@ impl LanguageRegistryState {
         *self.subscription.0.borrow_mut() = ();
     }
 
-    /// Mark the given language a having been loaded, so that the
+    /// Mark the given language as having been loaded, so that the
     /// language registry won't try to load it again.
     fn mark_language_loaded(&mut self, id: AvailableLanguageId) {
         for language in &mut self.available_languages {