[Cache] minor tweaks

Author: nicolas-grekas

components/cache.rst

@@ -10,8 +10,9 @@ The Cache Component
 
     The Cache component provides an extended `PSR-6`_ implementation as well as
     a `PSR-16`_ "Simple Cache" implementation for adding cache to your applications.
-    It is designed to have a low overhead and it ships with ready to use adapters
-    for the most common caching backends.
+    It is designed for performance and resiliency, and ships with ready to use
+    adapters for the most common caching backends, including proxies for adapting
+    from/to `Doctrine Cache`_.
 
 Installation
 ------------
@@ -189,4 +190,4 @@ Advanced Usage (PSR-6)
 
 .. _`PSR-6`: http://www.php-fig.org/psr/psr-6/
 .. _`PSR-16`: http://www.php-fig.org/psr/psr-16/
-.. _Packagist: https://packagist.org/packages/symfony/cache
+.. _Doctrine Cache: https://www.doctrine-project.org/projects/cache.html

components/cache/adapters/pdo_doctrine_dbal_adapter.rst

@@ -27,7 +27,7 @@ third, and forth parameters::
         // until the database table is truncated or its rows are otherwise deleted)
         $defaultLifetime = 0,
 
-        // an array of options for configuring the database connection
+        // an array of options for configuring the database table and connection
         $options = array()
     );
 

components/cache/cache_pools.rst

@@ -184,7 +184,7 @@ allowing manual removal of stale cache items::
 
 The :ref:`ChainAdapter <component-cache-chain-adapter>` implementation does not directly
 contain any pruning logic itself. Instead, when calling the chain adapter's
-:method:`Symfony\\Component\\Cache\\ChainAdapter::prune` method, the call is delegated to all
+:method:`Symfony\\Component\\Cache\\Adapter\\ChainAdapter::prune` method, the call is delegated to all
 its compatible cache adapters (and those that do not implement ``PruneableInterface`` are
 silently ignored)::