docs: update examples

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/dtype/README.md

@@ -112,7 +112,7 @@ var s;
 var i;
 for ( i = 0; i < slices.length; i++ ) {
     s = slice( x, slices[ i ] );
-    console.log( '%s => %s', s.dtype, dtype( s ) );
+    console.log( '%s => %s', dtype( x ), dtype( s ) );
 }
 ```
 

lib/node_modules/@stdlib/ndarray/dtype/examples/index.js

@@ -53,5 +53,5 @@ var s;
 var i;
 for ( i = 0; i < slices.length; i++ ) {
 	s = slice( x, slices[ i ] );
-	console.log( '%s => %s', s.dtype, dtype( s ) );
+	console.log( '%s => %s', dtype( x ), dtype( s ) );
 }