Updated README file with directions for moving the theme files to the correct directory.

README

@@ -1,6 +1,6 @@
 You will need root access to extract the directory.
 
-1. Extract the 'Simple' directory to /usr/share/games/pioneers/themes
+1. Move the 'Simple' directory into '/usr/share/games/pioneers/themes'.
 2. Launch the game. 
-3. Under Settings > Preferences change the Theme to Simple.
+3. Under Settings > Preferences change the theme to Simple.
 4. Done!