Merge branch '6.4' into 7.3

* 6.4:
  Update advanced-config.rst
  [DomCrawler] Remove useless note about useHtml5Parser argument
  clarify that "placeholder" is an input attribute to configure

Author: xabbuh

components/dom_crawler.rst

@@ -649,23 +649,8 @@ another given base URI::
     UriResolver::resolve('?a=b', 'http://localhost/bar#foo'); // http://localhost/bar?a=b
     UriResolver::resolve('../../', 'http://localhost/'); // http://localhost/
 
-Using a HTML5 Parser
-~~~~~~~~~~~~~~~~~~~~
-
-If you need the :class:`Symfony\\Component\\DomCrawler\\Crawler` to use an HTML5
-parser, set its ``useHtml5Parser`` constructor argument to ``true``::
-
-    use Symfony\Component\DomCrawler\Crawler;
-
-    $crawler = new Crawler(null, $uri, useHtml5Parser: true);
-
-By doing so, the crawler will use the HTML5 parser provided by the `masterminds/html5`_
-library to parse the documents.
-
 Learn more
 ----------
 
 * :doc:`/testing`
 * :doc:`/components/css_selector`
-
-.. _`masterminds/html5`: https://packagist.org/packages/masterminds/html5

frontend/encore/advanced-config.rst

@@ -165,7 +165,7 @@ Use the following command to find the right service:
 
 .. code-block:: terminal
 
-    $ php bin/console console debug:container entrypoint_lookup
+    $ php bin/console debug:container entrypoint_lookup
 
     # You will see a result similar to this:
     Select one of the following services to display its information:

reference/forms/types/options/empty_data_description.rst.inc

@@ -12,8 +12,8 @@ when no value is selected, you can do it like this::
     ]);
 
 This will still render an empty text box, but upon submission the ``John Doe``
-value will be set. Use the ``data`` or ``placeholder`` options to show this
-initial value in the rendered form.
+value will be set. Use the ``data`` option or the ``placeholder`` key of the
+``attr`` option to show this initial value in the rendered form.
 
 .. note::