docs: update description

Signed-off-by: Philipp Burckhardt <[email protected]>

Author: Planeshifter

lib/node_modules/@stdlib/stats/base/dists/rayleigh/skewness/README.md

@@ -145,7 +145,7 @@ for ( i = 0; i < 10; i++ ) {
 
 #### stdlib_base_dists_rayleigh_skewness( sigma )
 
-Evaluates the skewness for a Rayleigh distribution.
+Returns the [skewness][skewness] of a [Rayleigh][rayleigh-distribution] distribution with scale parameter `sigma`.
 
 ```c
 double out = stdlib_base_dists_rayleigh_skewness( 9.0 );