rename List.hd to List.head (its name in Stdlib)

Author: tsnobip

pages/docs/manual/v12.0.0/editor-plugins.mdx

@@ -111,7 +111,7 @@ let stringMake3 = @doesNotThrow String.make(12, ' ')
 try (foo()) { | exn => throw(exn) }
 ```
 
-- Uses of e.g. `List.hd` are interpreted as belonging to the standard library. If you re-define `List` in the local scope, the analysis it will think it's dealing with `List` from the standard library.
+- Uses of e.g. `List.head` are interpreted as belonging to the standard library. If you re-define `List` in the local scope, the analysis it will think it's dealing with `List` from the standard library.
 - There is no special support for functors.
 
 ### Guide