docs: add example

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---

Author: kgryte

lib/node_modules/@stdlib/ndarray/base/unary-reduce-subarray/lib/main.js

@@ -158,6 +158,53 @@ var MAX_DIMS = UNARY.length - 1;
 *
 * var arr = ndarray2array( y.data, y.shape, y.strides, y.offset, y.order );
 * // returns [ [ true, false, true ] ]
+*
+* @example
+* var Float64Array = require( '@stdlib/array/float64' );
+* var ndarray2array = require( '@stdlib/ndarray/base/to-array' );
+* var every = require( '@stdlib/ndarray/base/every' );
+*
+* // Create data buffers:
+* var xbuf = new Float64Array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0 ] );
+* var ybuf = [ false ];
+*
+* // Define the array shapes:
+* var xsh = [ 1, 3, 2, 2 ];
+* var ysh = [];
+*
+* // Define the array strides:
+* var sx = [ 12, 4, 2, 1 ];
+* var sy = [ 0 ];
+*
+* // Define the index offsets:
+* var ox = 0;
+* var oy = 0;
+*
+* // Create an input ndarray-like object:
+* var x = {
+*     'dtype': 'float64',
+*     'data': xbuf,
+*     'shape': xsh,
+*     'strides': sx,
+*     'offset': ox,
+*     'order': 'row-major'
+* };
+*
+* // Create an output ndarray-like object:
+* var y = {
+*     'dtype': 'generic',
+*     'data': ybuf,
+*     'shape': ysh,
+*     'strides': sy,
+*     'offset': oy,
+*     'order': 'row-major'
+* };
+*
+* // Perform a reduction:
+* unaryReduceSubarray( every, [ x, y ], [ 0, 1, 2, 3 ] );
+*
+* var v = y.data;
+* // returns [ true ]
 */
 function unaryReduceSubarray( fcn, arrays, dims, options ) { // eslint-disable-line max-statements
 	var views;