docs: fix copy and dtype

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Author: kgryte

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

@@ -26,7 +26,7 @@ limitations under the License.
 
 <section class="intro">
 
-In JavaScript, only strings and symbols are valid property names. When providing values for property names which are not string or symbols, the values are serialized to strings **prior to** attempting to access property values. For example, the following
+In JavaScript, only strings and symbols are valid property names. When providing values for property names which are not strings or symbols, the values are serialized to strings **prior to** attempting to access property values. For example, the following
 
 ```javascript
 var array = require( '@stdlib/ndarray/array' );

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

@@ -28,7 +28,7 @@
 * var ndindex = require( '@stdlib/ndarray/index' );
 *
 * var x = empty( [ 10 ], {
-*     'dtype': 'unit8'
+*     'dtype': 'uint8'
 * });
 *
 * var idx = new ndindex( x );