add asf and fix completion path

.zshrc

@@ -20,7 +20,7 @@ eval "$(/opt/homebrew/bin/brew shellenv)"
 
 # zsh completion
 if type brew &>/dev/null; then
-    FPATH=$(brew --prefix)/share/zsh-completions:$FPATH
+    FPATH="$(brew --prefix)/share/zsh/site-functions:${FPATH}"
 
     autoload -Uz compinit
     compinit
@@ -29,6 +29,9 @@ fi
 # direnv
 eval "$(direnv hook zsh)"
 
+# asdf
+. "$(brew --prefix asdf)/libexec/asdf.sh"
+
 # conda
 # !! Contents within this block are managed by 'conda init' !!
 __conda_setup="$('/usr/local/Caskroom/miniconda/base/bin/conda' 'shell.zsh' 'hook' 2> /dev/null)"