Small Path -> IO::Path cleanup

S16-io.pod

@@ -181,8 +181,8 @@ Mac will be provided by modules.
 
 =head2 $*CWD
 
-The global variable $*CWD is a Path object with certain special properties, 
-mainly:
+The global variable $*CWD is a C<IO::Path> object with certain special
+properties, mainly:
 
  * It must check whether the path exists before changing its value
  * It can only be assigned an absolute path; if you want to make relative 
@@ -193,7 +193,7 @@ native getcwd/chdir path, which are both usually process-wide.
 
 The variable is used in at least these cases:
 
- * When a Path object is created, if the string it is given is not an
+ * When a IO::Path object is created, if the string it is given is not an
    absolute path, then $*CWD is prepended to it.
  * When a subprocess is executed, it is executed with the current
    thread's $*CWD as its working directory.