add whitespace - needed for proper PDF generation so that next section is processed properly
adjust heading depth so that heading is included in appropriate section in PDF
adjust heading depth so that heading is included in appropriate section in PDF
Merge branch 'generatePDFDoc-adjustHeadings' of github.com:dominiqueplante/docs

Conflicts:
	version_2_5/docs/Intro/what-is-a-document-database.markdown
	version_2_5/docs/client-api/querying/using-linq-to-query-ravendb.markdown