MINOR Headline tweaking in 'forms', removed "add a dropdown to page class" chapter (too specific for the guide)
MINOR Headline tweaking in 'forms', removed "add a dropdown to page class" chapter (too specific for the guide)

mattclegg/silverstripe-doc-restructuring,mattclegg/silverstripe-doc-restructuring,mattclegg/silverstripe-doc-restructuring,NARKOZ/silverstripe-doc-restructuring,NARKOZ/silverstripe-doc-restructuring,mattclegg/silverstripe-doc-restructuring,NARKOZ/silverstripe-doc-restructuring,NARKOZ/silverstripe-doc-restructuring