Merge pull request #1803 from rust-lang/feat/crates-for-handling-errors

Add reference to crates.io error handling crates

src/error/multiple_error_types/wrap_error.md

@@ -92,5 +92,9 @@ for you.
 
 [`From::from`][from] and [`Enums`][enums]
 
+
+[`Crates for handling errors`][crates-errors]
+
 [from]: https://doc.rust-lang.org/std/convert/trait.From.html
 [enums]: ../../custom_types/enum.md
+[crates-errors]: https://crates.io/keywords/error-handling