docs: add links

PR-URL: #12824
Reviewed-by: Athan Reines <kgryte@gmail.com>

Author: Planeshifter

lib/node_modules/@stdlib/number/float16/base/mul/README.md

@@ -20,7 +20,7 @@ limitations under the License.
 
 # mul
 
-> Multiply two half-precision floating-point numbers.
+> Multiply two [half-precision floating-point numbers][ieee754].
 
 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
 
@@ -108,6 +108,8 @@ logEachMap( '%d x %d = %d', x, y, mul );
 
 <section class="links">
 
+[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
+
 </section>
 
 <!-- /.links -->

lib/node_modules/@stdlib/number/float16/base/sub/README.md

@@ -20,7 +20,7 @@ limitations under the License.
 
 # sub
 
-> Subtract two half-precision floating-point numbers.
+> Subtract two [half-precision floating-point numbers][ieee754].
 
 <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
 
@@ -110,6 +110,8 @@ logEachMap( 'x: %f, y: %f => %f', x, y, sub );
 
 <section class="links">
 
+[ieee754]: https://en.wikipedia.org/wiki/IEEE_754-1985
+
 </section>
 
 <!-- /.links -->