Update fish shell config

config/fish/functions/fasd_cd.fish

@@ -0,0 +1,9 @@
+function fasd_cd -d "fasd builtin cd"
+  if test (count $argv) -le 1
+    command fasd "$argv"
+  else
+    set -l ret (command fasd -e 'printf %s' $argv)
+    test -z "$ret"; and return
+    test -d "$ret"; and cd "$ret"; or printf "%s\n" $ret
+  end
+end