Fix docs for Way (#13402)

Author: Vadim Averin

ydb/docs/en/core/yql/reference/yql-core/builtins/_includes/basic/variant.md

@@ -102,8 +102,8 @@ Returns an active field (active index) of a variant over a struct (tuple).
 ### Signature
 
 ```yql
-VariantItem(Variant<key1: K1, key2: K2, ...>{Flags:AutoMap})->Utf8
-VariantItem(Variant<K1, K2, ...>{Flags:AutoMap})->Uint32
+Way(Variant<key1: K1, key2: K2, ...>{Flags:AutoMap})->Utf8
+Way(Variant<K1, K2, ...>{Flags:AutoMap})->Uint32
 ```
 
 ### Example

ydb/docs/ru/core/yql/reference/yql-core/builtins/_includes/basic/variant.md

@@ -114,8 +114,8 @@ SELECT
 ### Сигнатура
 
 ```yql
-VariantItem(Variant<key1: K1, key2: K2, ...>{Flags:AutoMap})->Utf8
-VariantItem(Variant<K1, K2, ...>{Flags:AutoMap})->Uint32
+Way(Variant<key1: K1, key2: K2, ...>{Flags:AutoMap})->Utf8
+Way(Variant<K1, K2, ...>{Flags:AutoMap})->Uint32
 ```
 
 ### Пример