docs(option/orElse): add deprecation message

glennsl · aspeddro · glennsl · commit 29b3d5d65533 · 2023-03-07T10:32:50.000+01:00
Co-authored-by: Pedro Castro &lt;aspeddro@gmail.com&gt;
diff --git a/src/Core__Option.resi b/src/Core__Option.resi
@@ -210,7 +210,7 @@ Option.orElse(None, Some(1066) == Some(1066)
 Option.orElse(None, None) == None
 ```
 */
-@deprecated
+@deprecated("Use `or` instead")
 let orElse: (option<'a>, option<'a>) => option<'a>
 
 /**
