Updated comment section at top of file to remove information that's no longer accurate

build.sh

@@ -15,15 +15,6 @@
 #  two directories: 'source' (which holds your Markdown files) and 'output' (which holds the
 #  converted CSS.
 #
-#  --------------------------------------------------------------------------
-#  IMPORTANT - Each Markdown file MUST be in it's own directory!
-#  --------------------------------------------------------------------------
-#  This is because of the way I handle conversion. The conversion occurs 
-#  concurrently, and each file is copied into the same temporary location. 
-#  Each file is placed into a directory with the same name as the parent 
-#  directory.
-#  --------------------------------------------------------------------------
-#
 #  In addition to these directories, three files are needed in 'website':
 #  1. 'header.html' - A header, which is prepended to every source file. Unfortunately, this must
 #		      be written in regular HTML.