docs: update example

Signed-off-by: Athan <kgryte@gmail.com>

Author: kgryte

lib/node_modules/@stdlib/stats/meanwd/examples/index.js

@@ -25,7 +25,7 @@ var meanwd = require( './../lib' );
 
 // Generate an array of random numbers:
 var x = uniform( [ 5, 5 ], 0.0, 20.0 );
-console.log( x );
+console.log( ndarray2array( x ) );
 
 // Perform a reduction:
 var y = meanwd( x, {