docs: improve comments in sample code

Author: kenjis

user_guide_src/source/testing/response/024.php

@@ -1,10 +1,13 @@
 <?php
 
-// Check that "Hello World" is on the page
+// Verify that "Hello World" is on the page
 $result->assertSee('Hello World');
-// Check that "Hello World" is within an h1 tag
+
+// Verify that "Hello World" is within an h1 tag
 $result->assertSee('Hello World', 'h1');
-// Check that "Hello World" is within an element with the "notice" class
+
+// Verify that "Hello World" is within an element with the "notice" class
 $result->assertSee('Hello World', '.notice');
-// Check that "Hello World" is within an element with id of "title"
+
+// Verify that "Hello World" is within an element with id of "title"
 $result->assertSee('Hello World', '#title');

user_guide_src/source/testing/response/029.php

@@ -1,6 +1,7 @@
 <?php
 
-// Check that an input exists named 'user' with the value 'John Snow'
+// Verify that an input exists named 'user' with the value 'John Snow'
 $results->assertSeeInField('user', 'John Snow');
-// Check a multi-dimensional input
+
+// Verify a multi-dimensional input
 $results->assertSeeInField('user[name]', 'John Snow');