minor #12610 [3.4] Fixed many spelling issues found in the docs (wouterj)

This PR was merged into the 3.4 branch.

Discussion
----------

[3.4] Fixed many spelling issues found in the docs

I was planning to do this for a long time: Run the [Sphinx spelling checker](https://pypi.org/project/sphinxcontrib.spelling/) on the Symfony documentation.

This PR fixes quite a lot of spelling issues found in the files starting with `b` and `c` for the 3.4 branch. I think it's good to have these fixed, so I'm happy to merge this myself and fix any merge conflicts that might occur while doing the up-merge once.

Meanwhile, I'm also preparing a "word list" of words that the spelling checker doesn't recognize. The spelling checker uses Enhant, which is [also available for PHP](https://www.php.net/manual/en/book.enchant.php). So we might be able to add this to DOCtor when all issues are fixed.

cc @symfony/team-symfony-docs

Commits
-------

bb5fb7b Fixed many spelling issues

Author: wouterj

best_practices/controllers.rst

@@ -48,7 +48,7 @@ configuration to the main routing configuration file:
 
 This configuration will load annotations from any controller stored inside the
 ``src/AppBundle/Controller/`` directory and even from its subdirectories.
-So if your application defines lots of controllers, it's perfectly ok to
+So if your application defines lots of controllers, it's perfectly OK to
 reorganize them into subdirectories:
 
 .. code-block:: text

best_practices/templates.rst

@@ -30,8 +30,8 @@ Template Locations
     Store all your application's templates in ``app/Resources/views/`` directory.
 
 Traditionally, Symfony developers stored the application templates in the
-``Resources/views/`` directory of each bundle. Then they used the Twig namespaced
-path to refer to them (e.g. ``@AcmeDemo/Default/index.html.twig``).
+``Resources/views/`` directory of each bundle. Then they used Twig namespaces
+to refer to them (e.g. ``@AcmeDemo/Default/index.html.twig``).
 
 But for the templates used in your application, it's much more convenient
 to store them in the ``app/Resources/views/`` directory. For starters, this
@@ -51,7 +51,7 @@ scattered through lots of bundles.
 
 .. best-practice::
 
-    Use lowercased snake_case for directory and template names.
+    Use lowercase snake_case for directory and template names.
 
 .. best-practice::
 

bundles/best_practices.rst

@@ -37,7 +37,7 @@ A namespace becomes a bundle as soon as you add a bundle class to it. The
 bundle class name must follow these simple rules:
 
 * Use only alphanumeric characters and underscores;
-* Use a StudlyCaps name (i.e. camelCase with the first letter uppercased);
+* Use a StudlyCaps name (i.e. camelCase with an uppercase first letter);
 * Use a descriptive and short name (no more than two words);
 * Prefix the name with the concatenation of the vendor (and optionally the
   category namespaces);

components/asset.rst

@@ -119,8 +119,9 @@ suffix to any asset path::
     echo $package->getUrl('image.png');
     // result: image.png?v1
 
-In case you want to modify the version format, pass a sprintf-compatible format
-string as the second argument of the ``StaticVersionStrategy`` constructor::
+In case you want to modify the version format, pass a ``sprintf``-compatible
+format string as the second argument of the ``StaticVersionStrategy``
+constructor::
 
     // puts the 'version' word before the version value
     $package = new Package(new StaticVersionStrategy('v1', '%s?version=%s'));

components/cache/adapters/php_array_cache_adapter.rst

@@ -34,5 +34,5 @@ that is optimized and preloaded into OPcache memory storage::
 
 .. note::
 
-    This adapter requires PHP 7.x and should be used with the php.ini setting
-    ``opcache.enable`` on.
+    This adapter requires PHP 7.x and should be used with the ``php.ini``
+    setting ``opcache.enable=On``.

components/class_loader/class_loader.rst

@@ -55,8 +55,8 @@ your classes::
     ]);
 
 Classes from a sub-namespace or a sub-hierarchy of `PEAR`_ classes can be
-looked for in a location list to ease the vendoring of a sub-set of classes
-for large projects::
+looked for in a location list to ease the splitting a sub-set of classes into
+another package for large projects::
 
     $loader->addPrefixes([
         'Doctrine\Common'          => __DIR__.'/vendor/doctrine/common/lib',

components/config.rst

@@ -6,7 +6,7 @@ The Config Component
 ====================
 
     The Config component provides several classes to help you find, load,
-    combine, autofill and validate configuration values of any kind, whatever
+    combine, fill and validate configuration values of any kind, whatever
     their source may be (YAML, XML, INI files, or for instance a database).
 
 Installation

components/console/helpers/processhelper.rst

@@ -9,7 +9,7 @@ useful information about process status.
 
 To display process details, use the :class:`Symfony\\Component\\Console\\Helper\\ProcessHelper`
 and run your command with verbosity. For example, running the following code with
-a very verbose verbosity (e.g. -vv)::
+a very verbose verbosity (e.g. ``-vv``)::
 
     use Symfony\Component\Process\Process;
 

components/console/helpers/progressbar.rst

@@ -237,7 +237,7 @@ the example above.
 Bar Settings
 ~~~~~~~~~~~~
 
-Amongst the placeholders, ``bar`` is a bit special as all the characters used
+Among the placeholders, ``bar`` is a bit special as all the characters used
 to display it can be customized::
 
     // the finished part of the bar

components/console/helpers/questionhelper.rst

@@ -203,7 +203,7 @@ convenient for passwords::
 .. caution::
 
     When you ask for a hidden response, Symfony will use either a binary, change
-    stty mode or use another trick to hide the response. If none is available,
+    ``stty`` mode or use another trick to hide the response. If none is available,
     it will fallback and allow the response to be visible unless you set this
     behavior to ``false`` using
     :method:`Symfony\\Component\\Console\\Question\\Question::setHiddenFallback`