More readme updates.

README.txt

@@ -23,7 +23,7 @@ compared to the original:
 
 * The graphics, sounds, and music are all completely different. This is
   because most of the original media was not properly licensed, and
-  therefore needed to be replaced to make the game 100% libre.  Most of
+  therefore needed to be replaced to make the game 100% libre. Most of
   this work was done by the previous project at SourceForge; the current
   project completed that work by adding music and replacing one
   non-libre graphic that got into version 1.2 by mistake.
@@ -32,6 +32,14 @@ compared to the original:
   balance the game better. However, if you want the original experience,
   "Classic" difficulty approximates it as closely as possible.
 
+* Much of the dialog has been changed. There are various reasons for
+  this; some of these include fixing bad writing, making the dialog
+  match new music queues, and giving the characters more personality.
+
+* In many places, the interface has been considerably improved. As an
+  example, the simplistic target arrow of the original has been replaced
+  with a system of several arrows, one for each ship.
+
 * Typing "humansdoitbetter" in the title screen no longer enables
   cheats. This is actually because the switch to SDL2 broke the original
   feature, and rather than fixing it, I just replaced it with something