diff --git a/7.-Example-Custom-Plugins.md b/7.-Example-Custom-Plugins.md
index 71f53ce..5093366 100644
--- a/7.-Example-Custom-Plugins.md
+++ b/7.-Example-Custom-Plugins.md
@@ -2527,4 +2527,48 @@ return {
 		end,
 	},
 }
+```
+# Nvim-Ufo
+```lua
+return {
+	"kevinhwang91/nvim-ufo",
+	dependencies = {
+		"kevinhwang91/promise-async",
+		{
+			"luukvbaal/statuscol.nvim",
+			config = function()
+				local builtin = require("statuscol.builtin")
+				require("statuscol").setup({
+					relculright = true,
+					segments = {
+						{ text = { builtin.foldfunc }, click = "v:lua.ScFa" },
+						{ text = { "%s" }, click = "v:lua.ScSa" },
+						{ text = { builtin.lnumfunc, " " }, click = "v:lua.ScLa" },
+					},
+				})
+			end,
+		},
+	},
+	event = "BufReadPost",
+	config = function()
+		vim.o.foldcolumn = "1" -- '0' is not bad
+		vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
+		vim.o.foldlevelstart = 99
+		vim.o.foldenable = true
+		vim.o.fillchars = [[eob: ,fold: ,foldopen:,foldsep: ,foldclose:]]
+
+		-- these are "extra", change them as you like
+		vim.keymap.set("n", "zR", require("ufo").openAllFolds)
+		vim.keymap.set("n", "zM", require("ufo").closeAllFolds)
+		vim.cmd("highlight FoldColumn guifg=" .. vim.fn.synIDattr(vim.fn.synIDtrans(vim.fn.hlID("Comment")), "fg"))
+		-- Option 3: treesitter as a main provider instead
+		-- Only depend on `nvim-treesitter/queries/filetype/folds.scm`,
+		-- performance and stability are better than `foldmethod=nvim_treesitter#foldexpr()`
+		require("ufo").setup({
+			provider_selector = function(bufnr, filetype, buftype)
+				return { "treesitter", "indent" }
+			end,
+		})
+	end,
+}
 ```
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