Fix doc

Author: osipovartem

src/ast/helpers/stmt_create_database.rs

@@ -51,6 +51,7 @@ use crate::parser::ParserError;
 /// )
 /// ```
 ///
+/// [1]: Statement::CreateTable
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 #[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
 #[cfg_attr(feature = "visitor", derive(Visit, VisitMut))]