fix: incorrect docstring for rooter settings

Author: mehalter

lua/astrocore/config.lua

@@ -219,12 +219,12 @@
 ---}
 ---```
 ---@field git_worktrees AstroCoreGitWorktree[]?
----Enable git integration for detached worktrees
+---Enable and configure project root detection
 ---Example:
 --
 ---```lua
 ---rooter = {
----  autochdir = true,
+---  autochdir = false,
 ---  detector = { "lsp", { ".git" } },
 ---  ignore = {
 ---    dirs = {},