clarify stuff

teckids.sty

@@ -200,10 +200,13 @@
  \textbf{Aufgabe für #1, zur Erledigung bis #2}: #3
 }
 
-% From https://tex.stackexchange.com/a/159701/43807 (but trivial)
+% Originally from https://tex.stackexchange.com/a/159701/43807
+% Question by Charles Staats <https://tex.stackexchange.com/users/484>
 % © 2014 Fran <https://tex.stackexchange.com/users/11604/fran>
-% Question by Charles Staats
-% <https://tex.stackexchange.com/users/484/charles-staats>
+% © 2014, 2017 mirabilos <thorsten.glaser@teckids.org>
+% The part of that answer actually taken is trivial though,
+% so the CC-WIKI requirements do not apply to this evolved excerpt.
+% This applies to fragments of the next two paragraphs only.
 
 \usepackage[table]{xcolor}
 \usepackage{newunicodechar}
@@ -213,6 +216,8 @@
  \makebox[0pt][c]{\raisebox{.1em}{\footnotesize!}}%
  \makebox[0pt][c]{\color{red}\huge$\bigtriangleup$}}}%
 
+% Set up more Unicode characters for LaTeX
+
 \newunicodechar{⚠}{\Warning}
 
 \usepackage{wasysym} % TeX sucks ☺