docs: update examples

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/vector/ctor/README.md

@@ -255,8 +255,8 @@ var lens = discreteUniform( 10, 5, 15, {
     'dtype': 'int32'
 });
 
-// Resolve a list of supported ndarray real-valued data types:
-var dts = dtypes( 'real_and_generic' );
+// Resolve a list of supported ndarray integer-valued data types:
+var dts = dtypes( 'integer_and_generic' );
 
 // Create length-dtype pairs:
 var pairs = cartesianProduct( lens, dts );

lib/node_modules/@stdlib/ndarray/vector/ctor/examples/index.js

@@ -31,8 +31,8 @@ var lens = discreteUniform( 10, 5, 15, {
 	'dtype': 'int32'
 });
 
-// Resolve a list of supported ndarray real-valued data types:
-var dts = dtypes( 'real_and_generic' );
+// Resolve a list of supported ndarray integer-valued data types:
+var dts = dtypes( 'integer_and_generic' );
 
 // Create length-dtype pairs:
 var pairs = cartesianProduct( lens, dts );