adjust heading for DCLP text to match capitalization and style used for metadata
generate proper link to XML file on github in header for DCLP Transcription (mirrors what we do in the header for DCLP/LDAB Data
apply templates only to the div@type=edition when processing text; this ensures the proper context node for the transform (otherwise at this point in the stylesheet we're at document root so there is no element node context) and also ensures we don't inadvertently pick up other components that we'd rather handle as metadata
adjust indent level for readability
add comment explaining square bracket fixing call