Fix doc links to rustc_lexer and rustc_middle

Author: reddevilmidzy

src/overview.md

@@ -395,7 +395,7 @@ For more details on bootstrapping, see
 - Lexical Analysis: Lex the user program to a stream of tokens
   - Guide: [Lexing and Parsing](the-parser.md)
   - Lexer definition: [`rustc_lexer`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lexer/index.html)
-  - Main entry point: [`rustc_lexer::cursor::Cursor::advance_token`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lexer/cursor/struct.Cursor.html#method.advance_token)
+  - Main entry point: [`rustc_lexer::Cursor::advance_token`](https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lexer/struct.Cursor.html#method.advance_token)
 - Parsing: Parse the stream of tokens to an Abstract Syntax Tree (AST)
   - Guide: [Lexing and Parsing](the-parser.md)
   - Guide: [Macro Expansion](macro-expansion.md)

src/query.md

@@ -254,8 +254,8 @@ You will typically need to:
 An example of introducing such a cross-crate query can be found in commit [`996a185`](https://github.com/rust-lang/rust/commit/996a185) in the `rust-lang/rust` repository.
 
 [rustc_metadata]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_metadata/index.html
-[providers_struct]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/query/struct.Providers.html
-[extern_providers_struct]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/query/struct.ExternProviders.html
+[providers_struct]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/queries/struct.Providers.html
+[extern_providers_struct]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/queries/struct.ExternProviders.html
 
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