docs: update related packages sections

lib/node_modules/@stdlib/ndarray/dtype-ctor/README.md

@@ -270,6 +270,13 @@ console.log( 'JSON: %s', JSON.stringify( dt ) );
 
 <section class="related">
 
+* * *
+
+## See Also
+
+-   <span class="package-name">[`@stdlib/ndarray/ctor`][@stdlib/ndarray/ctor]</span><span class="delimiter">: </span><span class="description">multidimensional array constructor.</span>
+-   <span class="package-name">[`@stdlib/ndarray/dtype`][@stdlib/ndarray/dtype]</span><span class="delimiter">: </span><span class="description">return the data type of a provided ndarray.</span>
+
 </section>
 
 <!-- /.related -->
@@ -286,6 +293,14 @@ console.log( 'JSON: %s', JSON.stringify( dt ) );
 
 [@stdlib/dstructs/struct]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/dstructs/struct
 
+<!-- <related-links> -->
+
+[@stdlib/ndarray/ctor]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/ctor
+
+[@stdlib/ndarray/dtype]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/dtype
+
+<!-- </related-links> -->
+
 </section>
 
 <!-- /.links -->

lib/node_modules/@stdlib/stats/incr/nangmean/README.md

@@ -32,7 +32,6 @@ The [geometric mean][geometric-mean] is defined as the nth root of a product of
 \biggl( \prod_{i=0}^{n-1} x_i \biggr)^{\frac{1}{n}} = \sqrt[n]{x_0 x_1 \cdots x_{n-1}}
 ```
 
-
 <!-- </equation> -->
 
 </section>