test: update description

Signed-off-by: Athan <[email protected]>

Author: kgryte

lib/node_modules/@stdlib/dstructs/named-typed-tuple/test/test.to_string.js

@@ -34,7 +34,7 @@ tape( 'main export is a function', function test( t ) {
 	t.end();
 });
 
-tape( 'an instance has a `toString` method', function test( t ) {
+tape( 'a tuple has a `toString` method', function test( t ) {
 	var Point;
 	var p;