Add to about page info about dictionary data used, a=chris

diff --git a/en-US/pages/about.thtml b/en-US/pages/about.thtml
index 0d433ea..707b4c8 100755
--- a/en-US/pages/about.thtml
+++ b/en-US/pages/about.thtml
@@ -25,6 +25,27 @@ Then I tried yoop, which is my lame way of pronouncing how
 giup sounds like in English. It was already taken. So then I
 combined the two to get Yioop!</p>

+<h1>Dictionary Data</h1>
+<p>
+Bloom filters for n grams on the Yioop! test site were generated using
+<a href="http://dumps.wikimedia.org/other/pagecounts-raw/">Wikimedia
+Page View Statistics</a>.
+Trie's for word suggestion for all languages other than
+Vietnamese were built
+using the <a href="http://en.wiktionary.org/wiki/Wiktionary:Frequency_lists"
+>Wiktionary Frequency List</a>. These are available under a
+<a href="http://creativecommons.org/licenses/by-sa/3.0/">Creative
+Commons Share Alike 3.0 Unported License</a> as described on <a
+href="http://en.wikipedia.org/wiki/Wikipedia:Database_download">Wikipedia's
+Download page</a>. The derived data files (if they were created for that
+language) for a language IANA taga locale-tag  can be found in the
+locale/locale-tag/resources folder of the Yioop! project. These
+are also licensed using the same license. For Vietnamese,
+I used the following <a
+href="http://www.informatik.uni-leipzig.de/~duc/software/misc/wordlist.html">
+Vietnamese Word List</a> obtained with permision from Ho Ngoc Duc.
+</p>
+
 <h1>Additional Credits</h1>
 <p>
 Several people helped