diff --git a/README.md b/README.md
index 11a2935..60faa86 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
+<!-- @import "[TOC]" {cmd="toc" depthFrom=1 depthTo=6 orderedList=false} -->
 # 从零开始打造属于自己的nvim
 ---
 ## 文件结构
diff --git a/coc-settings.json b/coc-settings.json
index 1648d6b..7a52e90 100644
--- a/coc-settings.json
+++ b/coc-settings.json
@@ -1,5 +1,7 @@
 {
   "snippets.ultisnips.pythonPrompt": false,
   "explorer.icon.enableNerdfont": true,
-  "explorer.toggle": true
+  "explorer.toggle": true,
+  "markdown-preview-enhanced.previewTheme":"github-dark.css",
+  "markdown-preview-enhanced.latexEngine": "pdflatex"
 }
diff --git a/lua/Filetype/Html.lua b/lua/Filetype/Html.lua
new file mode 100644
index 0000000..649545e
--- /dev/null
+++ b/lua/Filetype/Html.lua
@@ -0,0 +1,6 @@
+local map = vim.api.nvim_set_keymap
+local openPreview = ":CocCommand markdown-preview-enhanced.openPreview<CR>:CocCommand markdown-preview-enhanced.openPreviewBackground<CR>"
+
+map('n', '<leader>rr', openPreview, {noremap = false})
+
+print("markdown sourced")
diff --git a/lua/Filetype/markdown.lua b/lua/Filetype/markdown.lua
new file mode 100644
index 0000000..649545e
--- /dev/null
+++ b/lua/Filetype/markdown.lua
@@ -0,0 +1,6 @@
+local map = vim.api.nvim_set_keymap
+local openPreview = ":CocCommand markdown-preview-enhanced.openPreview<CR>:CocCommand markdown-preview-enhanced.openPreviewBackground<CR>"
+
+map('n', '<leader>rr', openPreview, {noremap = false})
+
+print("markdown sourced")
diff --git a/lua/Plugin/coc.lua b/lua/Plugin/coc.lua
index 5955895..0a04591 100644
--- a/lua/Plugin/coc.lua
+++ b/lua/Plugin/coc.lua
@@ -82,5 +82,3 @@ keyset("v", "<leader>tt", "<Plug>(coc-translator-pv)")
 -- translator-releader
 keyset("n", "<leader>tr", "<Plug>(coc-translator-r)")
 keyset("v", "<leader>tr", "<Plug>(coc-translator-rv)")
-
-
diff --git a/lua/core/options.lua b/lua/core/options.lua
index b82f4dc..04f1294 100644
--- a/lua/core/options.lua
+++ b/lua/core/options.lua
@@ -41,7 +41,7 @@ vim.cmd("colorscheme gruvbox")
 vim.cmd([[ au InsertLeave * :silent !fcitx5-remote -c ]])
 
 -- 文件判断
-vim.cmd([[ filetype plugin on ]])
+vim.cmd([[ filetype plugin indent on ]])
 
 -- 取消换行注释
 vim.api.nvim_create_autocmd({ "BufEnter" }, {
@@ -54,6 +54,14 @@ vim.api.nvim_create_autocmd({ "BufEnter" }, {
 	end,
 })
 
+local require_markdown = function() require('Filetype.markdown') end
+local require_html     = function() require('Filetype.Html') end
+
+vim.api.nvim_create_autocmd({
+{"FileType"}, { pattern = "markdown", callback = require_markdown },
+{"FileType"}, { pattern = "html", callback = require_html }
+})
+
 
 
 
@@ -71,7 +79,5 @@ vim.api.nvim_create_autocmd({ "BufEnter" }, {
 
 
 
-
-