adds imrad structure

Makefile

@@ -4,7 +4,7 @@ PANDOCFLAGS = \
 	--standalone \
 	--pdf-engine=xelatex \
 
-SOURCES_MD = $(wildcard chapter*.md)
+SOURCES_MD = $(sort $(wildcard chapter-*.md))
 
 default: all
 

chapter-markdown.md → chapter-1-introduction.md

-Markdown
-========
+Introduction
+============
 
-This is a first level header.
+This introduction serves as a Markdown Cheat Sheet. The header above is a first
+level header.
 
 Header Level
 ------------

chapter-2-methods.md

+Methods
+=======

chapter-3-results.md

+Results
+=======

chapter-4-discussion.md

+Discussion
+==========