Update osx.aliases.bash

Fixed skype typo.
diff --git a/aliases/available/osx.aliases.bash b/aliases/available/osx.aliases.bash
index fcddaef..9a07784 100644
--- a/aliases/available/osx.aliases.bash
+++ b/aliases/available/osx.aliases.bash
@@ -16,7 +16,7 @@
 alias fh='open -a Finder .'
 alias textedit='open -a TextEdit'
 alias hex='open -a "Hex Fiend"'
-alias skpye='open -a Skype'
+alias skype='open -a Skype'
 
 if [ -s /usr/bin/firefox ] ; then
   unalias firefox