docs: update namespace table of contents

PR-URL: #3979
Reviewed-by: Athan Reines <[email protected]>
Signed-off-by: stdlib-bot <[email protected]>
Co-authored-by: Philipp Burckhardt <[email protected]>

Author: stdlib-bot

lib/node_modules/@stdlib/ndarray/README.md

@@ -120,6 +120,7 @@ In addition, the namespace contains the following multidimensional array utility
 -   <span class="signature">[`strides( x )`][@stdlib/ndarray/strides]</span><span class="delimiter">: </span><span class="description">return the strides of a provided ndarray.</span>
 -   <span class="signature">[`sub2ind( shape, ...subscripts[, options] )`][@stdlib/ndarray/sub2ind]</span><span class="delimiter">: </span><span class="description">convert subscripts to a linear index.</span>
 -   <span class="signature">[`ndarray2array( x )`][@stdlib/ndarray/to-array]</span><span class="delimiter">: </span><span class="description">convert an ndarray to a generic array.</span>
+-   <span class="signature">[`ndarray2json( x )`][@stdlib/ndarray/to-json]</span><span class="delimiter">: </span><span class="description">serialize an ndarray as a JSON object.</span>
 -   <span class="signature">[`zerosLike( x[, options] )`][@stdlib/ndarray/zeros-like]</span><span class="delimiter">: </span><span class="description">create a zero-filled ndarray having the same shape and data type as a provided ndarray.</span>
 -   <span class="signature">[`zeros( shape[, options] )`][@stdlib/ndarray/zeros]</span><span class="delimiter">: </span><span class="description">create a zero-filled ndarray having a specified shape and data type.</span>
 
@@ -262,6 +263,8 @@ console.log( objectKeys( ns ) );
 
 [@stdlib/ndarray/to-array]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/to-array
 
+[@stdlib/ndarray/to-json]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/to-json
+
 [@stdlib/ndarray/zeros-like]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/zeros-like
 
 [@stdlib/ndarray/zeros]: https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/ndarray/zeros