Update src/doc/rustc/src/codegen-options/index.md

Co-authored-by: Eric Huss <[email protected]>

Author: rcvalle

Diff for: src/doc/rustc/src/codegen-options/index.md

@@ -557,8 +557,7 @@ is not supported. Using Sanitizers in mixed-language binaries (also known as
 all languages.
 
 For more information about the Sanitizers, see the [Sanitizers
-chapter](https://doc.rust-lang.org/rustc/sanitizers.html) of [The rustc
-book](https://doc.rust-lang.org/rustc/).
+chapter](../sanitizers.md).
 
 ## save-temps