feature #6968 [Console] Add multiple options for the output example (SpacePossum)

This PR was merged into the master branch.

Discussion
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[Console] Add multiple options for the output example

With symfony/symfony#19495 merged to master a way to set multiple options has been added.

Commits
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c6b4738 Update coloring.rst

Author: xabbuh

console/coloring.rst

@@ -65,6 +65,9 @@ You can also set these colors and options directly inside the tagname::
     // bold text on a yellow background
     $output->writeln('<bg=yellow;options=bold>foo</>');
 
+    // bold text with underscore
+    $output->writeln('<options=bold,underscore>foo</>');
+
 .. _Cmder: http://cmder.net/
 .. _ConEmu: https://conemu.github.io/
 .. _ANSICON: https://github.com/adoxa/ansicon/releases