chore(build): auto-generate vimdoc

doc/lazy.nvim.txt

@@ -68,8 +68,14 @@ You can add the following Lua code to your `init.lua` to bootstrap
 >lua
     local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
     if not vim.loop.fs_stat(lazypath) then
-      vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath })
-      vim.fn.system({ "git", "-C", lazypath, "checkout", "tags/stable" }) -- last stable release
+      vim.fn.system({
+        "git",
+        "clone",
+        "--filter=blob:none",
+        "https://github.com/folke/lazy.nvim.git",
+        "--branch=stable", -- latest stable release
+        lazypath,
+      })
     end
     vim.opt.rtp:prepend(lazypath)
 <