add chatgpt, norg and gen plugins

lua/custom/plugins/mardown_preview.lua

@@ -1,9 +1,27 @@
 return {
-    "iamcco/markdown-preview.nvim",
-    config = function()
-      vim.fn["mkdp#util#install"]()
+	"iamcco/markdown-preview.nvim",
+	config = function()
+		vim.fn["mkdp#util#install"]()
+		vim.keymap.set("n", "<leader>m", "<CMD>MarkdownPreview<CR>")
+		vim.keymap.set("n", "<leader>mn", "<CMD>MarkdownPreviewStop<CR>")
+		vim.g.mkdp_markdown_css = '~/markdown.css'
+		vim.g.mkdp_highlight_css = ''
 
-			vim.keymap.set("n", "<leader>m", "<CMD>MarkdownPreview<CR>")
-			vim.keymap.set("n", "<leader>mn", "<CMD>MarkdownPreviewStop<CR>")
-    end,
+		local mkdp_preview_options = {
+			mkit = {},
+			katex = {},
+			uml = {},
+			maid = {},
+			disable_sync_scroll = 0,
+			sync_scroll_type = 'middle',
+			hide_yaml_meta = 1,
+			sequence_diagrams = {},
+			flowchart_diagrams = {},
+			content_editable = true,
+			disable_filename = 1,
+			toc = {}
+		}
+
+		vim.g.mkdp_preview_options = mkdp_preview_options
+	end,
 }