docs: correct grammar in JSDoc comments

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---

Author: Planeshifter

lib/node_modules/@stdlib/ndarray/base/nullary-strided1d-dispatch-factory/lib/main.js

@@ -42,7 +42,7 @@ var NullaryStrided1dDispatch = require( '@stdlib/ndarray/base/nullary-strided1d-
 * @throws {TypeError} third argument must be an array of supported data types
 * @throws {TypeError} options argument must be an object
 * @throws {TypeError} must provide valid options
-* @returns {Function} function for applying a strided function an ndarray
+* @returns {Function} function for applying a strided function to an ndarray
 *
 * @example
 * var base = require( '@stdlib/blas/ext/base/ndarray/gsorthp' );

lib/node_modules/@stdlib/ndarray/base/unary-strided1d-dispatch-factory/lib/main.js

@@ -47,7 +47,7 @@ var UnaryStrided1dDispatch = require( '@stdlib/ndarray/base/unary-strided1d-disp
 * @throws {TypeError} fourth argument must be an object having supported policies
 * @throws {TypeError} options argument must be an object
 * @throws {TypeError} must provide valid options
-* @returns {Function} function for applying a strided function an ndarray
+* @returns {Function} function for applying a strided function to an ndarray
 *
 * @example
 * var base = require( '@stdlib/stats/base/ndarray/cumax' );