docs: update related packages sections

PR-URL: stdlib-js#5721
Reviewed-by: Athan Reines <[email protected]>

Author: stdlib-bot

lib/node_modules/@stdlib/constants/float32/sqrt-phi/README.md

@@ -120,6 +120,12 @@ Macro for the square root of the [golden ratio][@stdlib/constants/float32/phi] a
 
 <section class="related">
 
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/constants/float64/sqrt-phi`][@stdlib/constants/float64/sqrt-phi]</span><span class="delimiter">: </span><span class="description">square root of the golden ratio.</span>
+
 </section>
 
 <!-- /.related -->
@@ -132,6 +138,8 @@ Macro for the square root of the [golden ratio][@stdlib/constants/float32/phi] a
 
 <!-- <related-links> -->
 
+[@stdlib/constants/float64/sqrt-phi]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float64/sqrt-phi
+
 <!-- </related-links> -->
 
 </section>