Update 05-lecture.adoc

lectures/revealjs/05-lecture.adoc

-= Scrum / Gitlab
+= Q & A
 :customcss: slides.css
 :icons: font
 :includedir: includes/
@@ -14,7 +14,7 @@ IT1901 Fall 2021 - {LECTURE_NO}
 == Overview
 
 - Administrative issues
-- Q^A
+- Q & A
 
 
 [background-color = "#124990"]
@@ -31,7 +31,7 @@ IT1901 Fall 2021 - {LECTURE_NO}
 
 [background-color = "#124990"]
 [color = "#fff6d5"]
-== Q&A
+== Q & A
 
 
-include::{includedir}footer.adoc[]
\ No newline at end of file
+include::{includedir}footer.adoc[]