short-report: add scrartcl as option

This way you don't get all the problems with numbering if you use asection as the top-level instead of \chapter

short-report/short-report.tex

@@ -1,4 +1,8 @@
+% Use this if you plan on using \chapter{} as your top-level divider.
 \documentclass[a4paper,headings=small,11pt,oneside,bibliography=totoc]{scrreprt}
+% Use this if you plan on using only \section{} and not \chapter{} as your top-level divider. The primary difference is that \chapter forces a new page (useful for longer documents), whereas \section does not (useful for shorter ones).
+% \documentclass[a4paper,headings=small,11pt,oneside,bibliography=totoc]{scrartcl}
+% ----------------------------------------------------------------
 % \addtokomafont{disposition}{\sffamily}
 \renewcommand\familydefault{\sfdefault}
 \usepackage[utf8]{inputenc}