docs: add missing JSDoc example sections in _tools/pkgs packages

lib/node_modules/@stdlib/_tools/pkgs/dep-list/lib/main.js

@@ -60,6 +60,18 @@ function ascending( a, b ) {
 * @param {boolean} [options.manifest=true] - boolean indicating whether to return dependencies from `manifest.json` files
 * @throws {TypeError} first argument must be a string
 * @returns {(StringArray|EmptyArray)} dependencies
+*
+* @example
+* var out = depList( '@stdlib/assert/is-number-array' );
+* // returns [...]
+*
+* @example
+* var opts = {
+*     'dev': true
+* };
+*
+* var out = depList( '@stdlib/utils/keys', opts );
+* // returns [...]
 */
 function depList( pkg, options ) {
 	var opts;

lib/node_modules/@stdlib/_tools/pkgs/namespace-deps/lib/main.js

@@ -60,6 +60,18 @@ function ascending( a, b ) {
 * @param {number} [options.level=1] - dependency level
 * @throws {TypeError} first argument must be a string
 * @returns {(StringArray|EmptyArray)} dependencies
+*
+* @example
+* var out = namespaceDeps( '@stdlib/assert' );
+* // returns [...]
+*
+* @example
+* var opts = {
+*     'dev': true
+* };
+*
+* var out = namespaceDeps( '@stdlib/assert', opts );
+* // returns [...]
 */
 function namespaceDeps( pkg, options ) {
 	var opts;