Reformat documentation and link to class doc.

Author: sawmurai

components/var_dumper/advanced.rst

@@ -99,10 +99,9 @@ A dumper is responsible for outputting a string representation of a PHP variable
 using a :class:`Symfony\\Component\\VarDumper\\Cloner\\Data` object as input.
 The destination and the formatting of this output vary with dumpers and are 
 influenced by two environment variables: 
-If ``DUMP_STRING_LENGTH`` is set, then
-the length of a string is displayed next to its content. 
-If ``DUMP_LIGHT_ARRAY`` is set, 
-then arrays are not displayed completely.
+
+- If ``DUMP_STRING_LENGTH`` is set, then the length of a string is displayed next to its content. 
+- If ``DUMP_LIGHT_ARRAY`` is set, then arrays are not displayed completely.
 
 This component comes with an :class:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper`
 for HTML output and a :class:`Symfony\\Component\\VarDumper\\Dumper\\CliDumper`
@@ -186,7 +185,7 @@ method. They also typically implement the
 them from re-implementing the logic required to walk through a
 :class:`Symfony\\Component\\VarDumper\\Cloner\\Data` object's internal structure.
 
-The HTMLDumper limits string length and nesting depth of the output. 
+The :class:`Symfony\\Component\\VarDumper\\Dumper\\HtmlDumper` limits string length and nesting depth of the output. 
 These options can be overriden by providing a third parameter when calling ``dump``::
 
     use Symfony\Component\VarDumper\Dumper\HtmlDumper;