16 October 2012

• 15:4015:40, 16 October 2012 diff hist +3‎ m Attendance activity ‎ Corrected typo in "The block (optional)" section.

18 October 2010

• 11:1311:13, 18 October 2010 diff hist 0‎ m TeX notation filter ‎ Corrected a typing error in the 2nd sentence (the word 'appropriate')