docs: update desc

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/stats/meanpw/README.md

@@ -179,7 +179,7 @@ var dt = String( getDType( y ) );
 
 #### meanpw.assign( x, out\[, options] )
 
-Computes the [arithmetic mean][arithmetic-mean] along one or more [ndarray][@stdlib/ndarray/ctor] dimensions, using pairwise summation, and assigns results to a provided output [ndarray][@stdlib/ndarray/ctor].
+Computes the [arithmetic mean][arithmetic-mean] along one or more [ndarray][@stdlib/ndarray/ctor] dimensions using pairwise summation and assigns results to a provided output [ndarray][@stdlib/ndarray/ctor].
 
 ```javascript
 var array = require( '@stdlib/ndarray/array' );