update nvim add formatters

lua/plugins/null-ls.lua

@@ -0,0 +1,18 @@
+return {
+  "jose-elias-alvarez/null-ls.nvim",
+  event = "BufReadPre",
+  dependencies = { "mason.nvim" },
+  opts = function()
+    local nls = require("null-ls")
+    return {
+      sources = {
+        nls.builtins.formatting.terraform_fmt,
+        nls.builtins.formatting.rustfmt,
+        nls.builtins.formatting.yamlfmt,
+        nls.builtins.formatting.deno_fmt.with({
+          filetypes = { "markdown" }
+        }),
+      },
+    }
+  end,
+}