chore: move plugins to an upper level

lua/plugins/markdown.lua

@@ -0,0 +1,20 @@
+local M = {
+  {
+    "iamcco/markdown-preview.nvim",
+    cmd = { "MarkdownPreviewToggle", "MarkdownPreview", "MarkdownPreviewStop" },
+    build = "cd app && yarn install",
+    init = function()
+      vim.g.mkdp_filetypes = { "markdown" }
+    end,
+    ft = { "markdown" },
+  },
+  {
+    "MeanderingProgrammer/render-markdown.nvim",
+    dependencies = { "nvim-treesitter/nvim-treesitter", "echasnovski/mini.nvim" }, -- if you use the mini.nvim suite
+    opts = {},
+  },
+}
+
+M.config = function() end
+
+return M