feat(markdown): add MeanderingProgrammer/markdown.nvim

lua/lazyvim/plugins/extras/lang/render-markdown.lua

@@ -0,0 +1,31 @@
+return {
+  {
+    "lukas-reineke/headlines.nvim",
+    enabled = false,
+  },
+  {
+    "MeanderingProgrammer/markdown.nvim",
+    name = "render-markdown",
+    dependencies = { "nvim-treesitter/nvim-treesitter", "echasnovski/mini.icons" },
+    event = "BufEnter",
+    keys = {
+      { "<leader>um", "<cmd>RenderMarkdown toggle<CR>", desc = "Toggle Markdown Render" },
+    },
+    opts = {
+      code = {
+        sign = false,
+      },
+      heading = {
+        sign = false,
+        backgrounds = {
+          "Headline1",
+          "Headline2",
+          "Headline3",
+          "Headline4",
+          "Headline5",
+          "Headline6",
+        },
+      },
+    },
+  },
+}