Fix a writing mistake in the cs101F2019_lab06.

lab06/cs101F2019_lab06.tex

@@ -192,7 +192,7 @@ \section*{Reading Assignment}
 of Sections 4.1 through 4.3, continuing to focus on Code Fragment 4.1 and the
 commentary for Table 4.1, while also carefully studying the content about the
 worst-case time complexity of an algorithm. Please see the instructor or one of
-the teaching assistants if you have questions about this reading assignment.
+the technical leaders if you have questions about this reading assignment.
 
 \section*{Accessing the Laboratory Assignment on GitHub}