minor #3650 Fixing some build errors (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

Fixing some build errors

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

Commits
-------

62d4a97 fix seealso directive name
62586a4 fix table syntax
72659e2 fix PHP code block
c7f2ee6 fixing doc roles

Author: weaverryan

Diff for: components/form/type_guesser.rst

@@ -74,7 +74,7 @@ that the type guesser cannot guess the type.
 
 The ``TypeGuess`` constructor requires 3 options:
 
-* The type name (one of the :doc:`form types </reference/forms/types`);
+* The type name (one of the :doc:`form types </reference/forms/types>`);
 * Additional options (for instance, when the type is ``entity``, you also
   want to set the ``class`` option). If no types are guessed, this should be
   set to an empty array;

Diff for: components/security/authentication.rst

@@ -204,8 +204,8 @@ own, it just needs to follow these rules:
    :method:`Symfony\\Component\\Security\\Core\\Encoder\\PasswordEncoderInterface::isPasswordValid`
    must first of all make sure the password is not too long, i.e. the password length is no longer
    than 4096 characters. This is for security reasons (see `CVE-2013-5750`_), and you can use the
-   :method:`Symfony\\Component\\Security\\Core\\Encoder\\BasePasswordEncoder::isPasswordTooLong`_
-   method for this check:
+   :method:`Symfony\\Component\\Security\\Core\\Encoder\\BasePasswordEncoder::isPasswordTooLong`
+   method for this check::
 
        use Symfony\Component\Security\Core\Exception\BadCredentialsException;
 

Diff for: cookbook/email/cloud.rst

@@ -7,7 +7,7 @@ How to use the Cloud to Send Emails
 Requirements for sending emails from a production system differ from your
 development setup as you don't want to be limited in the number of emails,
 the sending rate or the sender address. Thus,
-:doc:`using Gmail </cookbook/email/gmail>`_ or similar services is not an
+:doc:`using Gmail </cookbook/email/gmail>` or similar services is not an
 option. If setting up and maintaining your own reliable mail server causes
 you a headache there's a simple solution: Leverage the cloud to send your
 emails.

Diff for: reference/constraints/Valid.rst

@@ -9,7 +9,7 @@ object and all sub-objects associated with it.
 | Applies to     | :ref:`property or method <validation-property-target>`              |
 +----------------+---------------------------------------------------------------------+
 | Options        | - `traverse`_                                                       |
-|                | - `message`_                                                       |
+|                | - `message`_                                                        |
 +----------------+---------------------------------------------------------------------+
 | Class          | :class:`Symfony\\Component\\Validator\\Constraints\\Type`           |
 +----------------+---------------------------------------------------------------------+

Diff for: reference/dic_tags.rst

@@ -344,7 +344,7 @@ process. By default, form guessing is done by "guessers" based on the validation
 metadata and Doctrine metadata (if you're using Doctrine) or Propel metadata
 (if you're using Propel).
 
-.. seelalso::
+.. seealso::
 
     For information on how to create your own type guesser, see
     :doc:`/components/form/type_guesser`.
@@ -847,7 +847,7 @@ swiftmailer.default.plugin
 
 If you're using a custom SwiftMailer plugin (or want to create one), you can
 register it with SwiftMailer by creating a service for your plugin and tagging
-it with ``swiftmailer.default.plugin`` (it has no options). 
+it with ``swiftmailer.default.plugin`` (it has no options).
 
 .. note::