docs: update related packages sections

PR-URL: #5328
Co-authored-by: Athan Reines <[email protected]>
Reviewed-by: Athan Reines <[email protected]>

Author: stdlib-bot

lib/node_modules/@stdlib/constants/float32/e/README.md

@@ -120,6 +120,12 @@ Macro for Euler's number.
 
 <section class="related">
 
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/constants/float64/e`][@stdlib/constants/float64/e]</span><span class="delimiter">: </span><span class="description">euler's number.</span>
+
 </section>
 
 <!-- /.related -->
@@ -130,6 +136,12 @@ Macro for Euler's number.
 
 [e]: https://en.wikipedia.org/wiki/E_%28mathematical_constant%29
 
+<!-- <related-links> -->
+
+[@stdlib/constants/float64/e]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/constants/float64/e
+
+<!-- </related-links> -->
+
 </section>
 
 <!-- /.links -->