applied typos and spelling error fixes patch from Olly Betts

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15779 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/crtslock.tex

@@ -9,7 +9,7 @@ and difficult to debug problems).
 Example of using it:
 
 \begin{verbatim}
-void SetFoo()
+void Set Foo()
 {
     // gs_critSect is some (global) critical section guarding access to the
     // object "foo"
@@ -59,5 +59,5 @@ Constructs a wxCriticalSectionLocker object associated with given
 
 \func{}{\destruct{wxCriticalSectionLocker}}{\void}
 
-Destuctor leaves the critical section.
+Destructor leaves the critical section.