chore: add correct link

Co-authored-by: Karan Anand <119553199+anandkaranubc@users.noreply.github.com>
Signed-off-by: Shabareesh Shetty <139731143+ShabiShett07@users.noreply.github.com>

Author: ShabiShett07

docs/contributing/FAQ.md

@@ -407,7 +407,7 @@ For more `make` commands, refer to the [documentation][benchmark] on running ben
 
 [make-commands]: https://github.com/stdlib-js/stdlib/tree/develop/tools/make/lib
 
-[markdown-len-ref]: https://github.com/stdlib-js/stdlib/pull/5754/files#diff-8b632afc40c671b4097b2d9fc318b0b6eedcebddeff0e13aad0a4d68260505d8R94
+[markdown-len-ref]: https://github.com/stdlib-js/stdlib/blob/78e0cfd8b6c0429a443b07fd39fa9dd53bf44d23/lib/node_modules/%40stdlib/lapack/base/dgttrf/README.md?plain=1#L94
 
 [javascript-len-ref]: https://github.com/stdlib-js/stdlib/pull/5754/files#diff-71a4cffefbc20405eaf647ea47353b5561fd10fc032a214183f0c307c3dc4624R75