Merge pull request #1 from yanagiragi/yanagiragi

update singer: yanaginagi

README.md

@@ -123,6 +123,7 @@ A curated list of awesome singer official portals.
 - [ X](#x)
     - [X Japan](#x-japan)
 - [Y](#y)
+    - [Yanaginagi](#yanaginagi)
     - [Yasutaka Nakata](#yasutaka-nakata)
     - [YUI](#yui)
     - [Yui Aragaki](#yui-aragaki)
@@ -752,6 +753,12 @@ A curated list of awesome singer official portals.
 
 * [Yasutaka Nakata](http://yasutaka-nakata.com/)
 
+## Yanaginagi
+
+* Yanaginagi is a Japanese singer, songwriter and lyricist from Osaka, Japan and is signed to Geneon. Initially, she sang and produced music independently beginning in 2005. Between 2009 and 2011, Yanagi was the guest vocalist of the J-pop band Supercell.
+
+* [Yanaginagi](http://yanaginagi.net/)
+
 ## Kayne West
 
 *Kanye Omari West is an American rapper, singer, songwriter, record producer, fashion designer, and entrepreneur.*