Add links in wordlists docs.

docs/wordlists.rst

@@ -2,23 +2,31 @@ Wordlists
 =========
 
 The passphrases generated by `diceware` naturally depend on the set of
-words used, the wordlists. `diceware` comes with some wordlists
-out-of-the-box, that are a good choice for usual private use.
+words used, the wordlists.
 
-By default we use the so-called ``8k`` list from http://diceware.com/
-with 8,192 english words.
+`diceware` comes with some wordlists out-of-the-box, that might be a
+good choice for usual private use.
 
-.. warn:: We do *not* use the list for use with dice (which contains
-	  7,776 words) by default, because the computer is better at
-	  binary math and we use the Python standard lib random source
-	  by default.
+By default we use the so-called `8k wordlist`_ from Mr. Reinhold as
+published on http://diceware.com/. It contains 8,192 english words
+and phrases.
 
-	  But the "original" list from http://diceware.com/ is
-	  included in diceware as well. You can pick it with the ``-w
-	  en_orig`` option.
+.. warning:: We do *not* use the `diceware standard wordlist`_ (which
+	     contains 7,776 words) by default, because computers
+	     prefer powers of two and we use the Python standard lib
+	     random source by default.
+
+	     But this "original" list is included in diceware as
+	     well. You can pick it with the ``-w en_orig`` option and
+	     you *should* pick it when you use real dice as source of
+	     randomness.
 
 You can pick another list with the ``-w`` or ``--wordlist`` option.
 
 You can add own wordlists.
 
 You can add PGP-signed wordlists.
+
+.. _`8k wordlist`: http://world.std.com/~reinhold/diceware8k.txt
+
+.. _`diceware standard wordlist`: http://world.std.com/~reinhold/diceware.wordlist.asc