Update _config.yml

Author: phxtao

_config.yml

@@ -6,7 +6,7 @@ title: blank # the website title (if blank, full name will be used instead)
 first_name: Feng Tao
 middle_name:
 last_name: 陶鳳
-email: feng.tao@cornell.edu; phx.tao@gmail.com
+email: feng.tao@psu.edu; phx.tao@gmail.com
 # description: > # the ">" symbol means to ignore newlines until "footer_text:"
 #   A simple, whitespace theme for academics. Based on [*folio](https://github.com/bogoli/-folio) design.
 # footer_text: >