Corrected README with new paths.

README

@@ -13,7 +13,7 @@ $ java GenCompiler [-d dir] [-o outfile] schema
 options:
         -d dir          directory where generated files are put. 
                         Will be created if not already exists.
-                        Default is 'x3d'.
+                        Default is 'examples/x3d'.
                         
         -o outfile      Name for generated grammar files.
                         Default is 'x3d'.
@@ -23,7 +23,7 @@ EXAMPLE
 
 $ ant
 $ java GenCompiler examples/x3d-3.0.xsd 
-$ cd x3d
+$ cd examples/x3d/
 $ ant
 
 Will generate a compiler for x3d in the x3d subdirectory. This
@@ -34,9 +34,9 @@ NOTE! The supplied code in OBB.java and BoundingBox.jrag depends on
 the jme package from http://www.jmonkeyengine.com/
 
 There are two main programs supplied:
-$ java PrettyPrint ../examples/workpiece.x3d 
+$ java PrettyPrint ../workpiece.x3d 
 will just print out an x3d representation.
-$ java OBB ../examples/workpiece.x3d 
+$ java OBB ../workpiece.x3d 
 will compute bounding boxes (both AABB and OBB) and print out the 
 characteristics.