Update documentation links to reflect new format

Summary:
The OTP team recently changed the URL format for Erlang/OTP function documentation from:

https://www.erlang.org/doc/apps/stdlib/string.html#left-2

To:

https://www.erlang.org/doc/apps/stdlib/string.html#left/2

Update ELP accordingly.

Reviewed By: alanz

Differential Revision: D59467163

fbshipit-source-id: 0b3c69bb3422fc3f2eace2b301dc2a3c11ec47db

crates/ide/src/doc_links/otp_links.rs

@@ -35,7 +35,7 @@ pub(crate) fn links(res: &mut Vec<DocLink>, sema: &Semantic, def: &SymbolDefinit
                     let function_arity = function_def.name.arity();
                     let title = format!("{module_name}:{function_name}/{function_arity}");
                     let uri = format!(
-                        "{}/doc/man/{}.html#{}-{}",
+                        "{}/doc/man/{}.html#{}/{}",
                         OTP_BASE_URL, module_name, function_name, function_arity
                     );
                     let link = DocLink { title, uri };
@@ -101,7 +101,7 @@ mod tests {
  a() ->
    lists:rev~erse([]).
          "#,
-            vec!["https://erlang.org/doc/man/lists.html#reverse-1"],
+            vec!["https://erlang.org/doc/man/lists.html#reverse/1"],
         )
     }