Bump up version and update Changes

Author: syohex

Changes

@@ -1,5 +1,10 @@
 Revision history for go-eldoc.el
 
+Version 0.23 2015/03/31 syohex
+  - Fix incorrect highlight issue(#29)
+    go-eldoc.el highlighted incorrectly on left hand side, where function returns
+    function type which has no name.
+
 Version 0.22 2015/02/23 syohex
   - Update minimum go-mode version
 

go-eldoc.el

@@ -4,7 +4,7 @@
 
 ;; Author: Syohei YOSHIDA <syohex@gmail.com>
 ;; URL: https://github.com/syohex/emacs-go-eldoc
-;; Version: 0.22
+;; Version: 0.23
 ;; Package-Requires: ((go-mode "1.0.0") (cl-lib "0.5"))
 
 ;; This program is free software; you can redistribute it and/or modify