ヘルプに論文の引用方法を記載

README.md

@@ -81,7 +81,7 @@ for genes and transcripts.]
 ライセンス
 --------
 
-Copyright © 2012-2014 Yuki Naito
+Copyright © 2012-2015 Yuki Naito
  ([@meso_cacase](http://twitter.com/meso_cacase)) at  
 Database Center for Life Science (DBCLS), Japan.  
 This software is distributed under [modified BSD license]

help.html.en

@@ -423,6 +423,7 @@ Species:
 
 <div>
 Reference:
+<p>If you use GGRNA in your work, please cite GGRNA paper.</p>
 <ul>
 	<li>Yuki Naito &amp; Hidemasa Bono (2012)<br>
 		<a target='_blank' class=k href='http://nar.oxfordjournals.org/content/40/W1/W592.full'><!--
@@ -482,7 +483,7 @@ What's new:
 
 <hr><!-- __________________________________________________ -->
 
-<p class=g>Last modified on Jan 13, 2015 by
+<p class=g>Last modified on Apr 10, 2015 by
 <a target='_blank' class=a href='http://twitter.com/meso_cacase'>@meso_cacase</a> at 
 <a target='_blank' class=a href='http://dbcls.rois.ac.jp/en/'>DBCLS</a><br>
 This page is licensed under a

help.html.ja

@@ -410,11 +410,15 @@ set_spe()
 
 <div>
 文献：
+<p>GGRNAを論文中でとりあげていただける場合は、下記の論文を引用してくださるようお願いいたします。</p>
 <ul>
 	<li>Yuki Naito &amp; Hidemasa Bono (2012)<br>
 		<a target='_blank' class=k href='http://nar.oxfordjournals.org/content/40/W1/W592.full'><!--
 		-->GGRNA: an ultrafast, transcript-oriented search engine for genes and transcripts.</a><br>
 		<i>Nucleic Acids Res.</i> <b>40</b>, W592-W596.
+</ul>
+<p>日本語による総説、その他</p>
+<ul>
 	<li>内藤雄樹・坊農秀雅 (2012)<br>
 		<a target='_blank' class=k href='http://first.lifesciencedb.jp/from_dbcls/e0001'><!--
 		-->統合遺伝子検索GGRNA：遺伝子をGoogleのように検索できるウェブサーバ.</a><br>
@@ -525,7 +529,7 @@ set_spe()
 
 <hr><!-- __________________________________________________ -->
 
-<p class=g>Last modified on Jan 13, 2015 by
+<p class=g>Last modified on Apr 10, 2015 by
 <a target='_blank' class=a href='http://twitter.com/meso_cacase'>@meso_cacase</a> at 
 <a target='_blank' class=a href='http://dbcls.rois.ac.jp/'>DBCLS</a><br>
 This page is licensed under a