Minor change to WolframAutomata README.

diff --git a/hacks/WolframAutomata/README.md b/hacks/WolframAutomata/README.md
index 91fe6e8..1753510 100644 (file)
--- a/hacks/WolframAutomata/README.md
+++ b/hacks/WolframAutomata/README.md
@@ -14,9 +14,9 @@ switching on or off. Each new application of the rule to the universe is drawn
 on the screen as a new line directly below the previous generation's line,
 leading the screen to scroll vertically.
 
 on the screen as a new line directly below the previous generation's line,
 leading the screen to scroll vertically.
 

-The rules which govern the time evolution of this system depend only on the
-current state of a given cell and the state of its two immediate neighbors.
-These rules are formalized as
+Since these are "elementary" cellular automata, the rules which govern the time
+evolution of this system depend only on the current state of a given cell and
+the state of its two immediate neighbors.  These rules are formalized as

 [Wolfram codes](https://en.wikipedia.org/wiki/Wolfram_code),
 where the code number is directly convertible into a rule set.
 
 [Wolfram codes](https://en.wikipedia.org/wiki/Wolfram_code),
 where the code number is directly convertible into a rule set.