upgrade zsh plugin entry, add z -b alias

README.cn.md

@@ -317,6 +317,7 @@ $ ls -l `zb git`
 alias zc='z -c'      # 严格匹配当前路径的子路径
 alias zz='z -i'      # 使用交互式选择模式
 alias zf='z -I'      # 使用 fzf 对多个结果进行选择
+alias zb='z -b'      # 快速回到父目录
 ```
 
 

README.md

@@ -315,7 +315,7 @@ Recommended aliases you may find useful:
 alias zc='z -c'      # restrict matches to subdirs of $PWD
 alias zz='z -i'      # cd with interactive selection
 alias zf='z -I'      # use fzf to select in multiple matches
-alias zb='z -b'      # cd backwards to parent directory
+alias zb='z -b'      # quickly cd to the parent directory
 ```
 
 

z.lua.plugin.zsh

@@ -27,5 +27,6 @@ eval "$($ZLUA_EXEC $ZLUA_SCRIPT --init zsh once enhanced)"
 alias zz='z -i'
 alias zc='z -c'
 alias zf='z -I'
+alias zb='z -b'
 alias zzc='zz -c'