Add a caption to the literalinclude
Add a caption to the literalinclude

This is added for testing cases like https://github.com/rtfd/sphinx_rtd_theme/issues/292

mitya57/sphinx_rtd_theme,snide/sphinx_rtd_theme,snide/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,snide/sphinx_rtd_theme,mitya57/sphinx_rtd_theme,snide/sphinx_rtd_theme,mitya57/sphinx_rtd_theme