install rainbow delimiters

lua/plugins/rainbow_delimiters.lua

@@ -0,0 +1,21 @@
+return {
+	"https://gitlab.com/HiPhish/rainbow-delimiters.nvim",
+	init = function()
+		require("rainbow-delimiters.setup").setup({
+			-- strategy = {
+			--     -- ...
+			-- },
+			-- query = {
+			--     -- ...
+			-- },
+			highlight = {
+				"RainbowDelimiterYellow",
+				"RainbowDelimiterBlue",
+				"RainbowDelimiterOrange",
+				"RainbowDelimiterGreen",
+				"RainbowDelimiterViolet",
+				"RainbowDelimiterCyan",
+			},
+		})
+	end,
+}