tiny fixes from 10th editoin of the course

Author: Sebastien Ponce

Diff for: talk/basicconcepts/control.tex

@@ -179,7 +179,7 @@
     \end{cppcode*}
     \vspace{-0.2cm}
     \begin{itemize}
-      \item Initializations and increments are comma separated
+      \item Multiple initializations / increments are comma separated
       \item Initializations can contain declarations
       \item Braces are optional if loop body is a single statement
     \end{itemize}

Diff for: talk/objectorientation/objectsclasses.tex

@@ -145,7 +145,7 @@
       int a;
       int sum(int b);
       int sum(int b, int c);
-    }
+    };
 
     int MyFirstClass::sum(int b) { return a + b; }