docs: fix grammar

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

Author: kgryte

lib/node_modules/@stdlib/stats/strided/sztest2/docs/types/test.ts

@@ -333,7 +333,7 @@ import sztest2 = require( './index' );
 	sztest2.ndarray( x.length, y.length, 'two-sided', 0.05, 0.0, ( x: number ): number => x, x, 1, 0, 1.0, y, 1, 0, new Float32Results() ); // $ExpectError
 }
 
-// The compiler throws an error if the `ndarray` method is provided an seventh argument which is not an array-like object...
+// The compiler throws an error if the `ndarray` method is provided a seventh argument which is not an array-like object...
 {
 	const x = new Float32Array( 10 );
 	const y = new Float32Array( 10 );