Update READMEs

Author: siddhantwahal

stage5.1_fuller_application/README.md

@@ -1,3 +1,3 @@
 # Second real version of the pycasa ETS pyface application!
-Building on the application state 4.2, this version simply adds an editor and a 
-view for a folder to be visualized.
+Building on the application state 4.1, this version adds a model and view for
+a folder of image files.

stage5.3_fuller_application/README.md

@@ -1,3 +1,3 @@
 # Second real version of the pycasa ETS pyface application
-Building on the application state 5.1, this version adds a button to the folder 
-and file views so the faces can be detected.
+Building on the application state 5.2, this version adds a controls to filter
+the data displayed for an image folder.