docs: fix broken Markdown link #9125

docs: fix broken Markdown link in has-has-instance-symbol-support

Replaced the broken MDN link for `Symbol.hasInstance` in 
`lib/node_modules/@stdlib/assert/has-has-instance-symbol-support/README.md` 
with the updated URL from MDN.

Resolves #9125

Signed-off-by: Almunazza <munazzaghazali7@gmail.com>

Author: munazzaghazali7-hash

lib/node_modules/@stdlib/assert/has-has-instance-symbol-support/README.md

@@ -122,7 +122,7 @@ $ has-has-instance-symbol-support
 
 <section class="links">
 
-[mdn-has-instance-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol.hasInstance
+[mdn-has-instance-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance
 
 </section>