Modified README.md to show changes of seeding

README.md

@@ -1,6 +1,6 @@
 # sfmt-erlang: SIMD-oriented Fast Mersenne Twister (SFMT) for Erlang
 
-* Version 0.8.0_RELEASE 3-MAY-2012
+* Version 0.8.1_RELEASE 25-MAY-2012
 * Edited and written by Kenji Rikitake (Kyoto University)
 * Email contact: <kenji.rikitake@acm.org>
 
@@ -26,6 +26,17 @@ See <http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/SFMT/index.html>
 * new module sfmt86243 added (from 0.6.1_BETA)
 * Pure SFMT module now added as working code by request (from 0.8.0_RELEASE)
 
+## Note: seeding algorithm changed for `seed(integer())` functions
+
+* The old `seed/1` function calls `int_gen_rand/1` (up to 0.8.0_RELEASE)
+* The internal state generated by `int_gen_rand/1` is predictable,
+  especially when the value of the 1st element of the state list is
+  very close to the given seed value. 
+  (Michael Gebetsroither discovered this behavior)
+* The new `seed/1` function calls `init_by_list32/1` (from 0.8.1_RELEASE)
+  and the seed is given as `[integer()]`,
+  to reduce predictability of the 1st element of the state list.
+
 ## Supported SFMT PRNG periods
 
 * sfmt607: (2^607 - 1)
@@ -130,7 +141,7 @@ which will be automatically fetched under the directory `support/`.
 * Richard O'Keefe
 * Yurii Rashkovskii
 * Kostis Sagonas (for code verification by dialyzer)
-* Michael Gebetsroither (for ths suggestion of Pure Erlang code workable)
+* Michael Gebetsroither (for the suggestion of Pure Erlang code workable)
 
 ## ACKNOWLEDGMENTS