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

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

Author: rcvalle

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

@@ -530,7 +530,7 @@ This option allows for use of one or more of these sanitizers:
     (ASan)](https://doc.rust-lang.org/rustc/sanitizers.html#addresssanitizer):
     Detects memory errors (e.g., buffer overflows, use after free).
   * [LeakSanitizer
-    (LSan)](https://doc.rust-lang.org/rustc/sanitizers.html#leaksanitizer):
+    (LSan)](../sanitizers.md#leaksanitizer):
     Detects memory leaks either as part of AddressSanitizer or as a standalone
     tool.