extending docs according #9713

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@54786 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/stdpaths.tex

@@ -39,6 +39,10 @@ to the Apple guidelines. Again, this class doesn't help you to do it.
 This class is MT-safe: its methods may be called concurrently from different
 threads without additional locking.
 
+Note that you don't allocate an instance of class wxStandardPaths, but retrieve the 
+global standard paths object using \texttt{wxStandardPaths::Get} on which you call the 
+desired methods.
+
 \wxheading{Derived from}
 
 No base class