Explaining how to uncheck a pre-checked checkbox for submitForm

Sounds like a tongue twister ... ;-)

I was expecting this text to be in https://github.com/Codeception/lib-innerbrowser/blob/master/src/Codeception/Lib/InnerBrowser.php#L941 - while in fact it's even in another module! So, again, a link at each function to get to its source code would really be nice - see #6063 (comment)
(More precisely: If the documentation isn't where the function is, then *two* links)

src/Codeception/Lib/Interfaces/Web.php

@@ -153,13 +153,15 @@ public function dontSeeInSource($raw);
      * For example, given this sample "Sign Up" form:
      *
      * ``` html
-     * <form action="/sign_up">
+     * <form id="userForm">
      *     Login:
      *     <input type="text" name="user[login]" /><br/>
      *     Password:
      *     <input type="password" name="user[password]" /><br/>
      *     Do you agree to our terms?
      *     <input type="checkbox" name="user[agree]" /><br/>
+     *     Subscribe to our newsletter?
+     *     <input type="checkbox" name="user[newsletter]" value="1" checked="checked" /><br/>
      *     Select pricing plan:
      *     <select name="plan">
      *         <option value="1">Free</option>
@@ -188,6 +190,9 @@ public function dontSeeInSource($raw);
      * Note that "2" will be the submitted value for the "plan" field, as it is
      * the selected option.
      *
+     * To uncheck the pre-checked checkbox "newsletter", call `$I->uncheckOption(['name' => 'user[newsletter]']);` *before*,
+     * then submit the form as shown here (i.e. without the "newsletter" field in the `$params` array).
+     *
      * You can also emulate a JavaScript submission by not specifying any
      * buttons in the third parameter to submitForm.
      *