docs: update dtype in example

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

Author: kgryte

lib/node_modules/@stdlib/stats/base/ndarray/mskrange/README.md

@@ -97,7 +97,7 @@ console.log( ndarray2array( x ) );
 var maskbuf = bernoulli( xbuf.length, 0.2, {
     'dtype': 'uint8'
 });
-var mask = new ndarray( 'generic', maskbuf, [ maskbuf.length ], [ 1 ], 0, 'row-major' );
+var mask = new ndarray( 'uint8', maskbuf, [ maskbuf.length ], [ 1 ], 0, 'row-major' );
 console.log( ndarray2array( mask ) );
 
 var v = mskrange( [ x, mask ] );