Merge pull request #2232 from ethdew19/main

Fix typo in traits hint

rustlings-macros/info.toml

@@ -763,7 +763,7 @@ hint = """
 Notice how the trait takes ownership of `self` and returns `Self`.
 
 Although the signature of `append_bar` in the trait takes `self` as argument,
-the implementation can take `mut self` instead. This is possible because the
+the implementation can take `mut self` instead. This is possible because  
 the value is owned anyway."""
 
 [[exercises]]