diff --git a/README.md b/README.md
index f44cf4e..b5c7ff9 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,9 @@ To open [README.md](./README.md): `<leader>hr`
 - vim-sleuth: autodetect file indentation rules/policies
 - showkeys: show typped keys
 - smear-cursor: visual cue of motion
+- render-markdown: view rendered markdown in nvim
+- image: render image (need to use kitty as terminal)
+- luarocks: needed to visualize images in markdown
 
 ### mainstream packages
 
diff --git a/REFERENCES.md b/REFERENCES.md
index b40e6c9..bb9446d 100644
--- a/REFERENCES.md
+++ b/REFERENCES.md
@@ -4,6 +4,9 @@
  - [Recent (2025-11-15) example of lsp setup](https://www.youtube.com/watch?v=oBiBEx7L000)
  - [Example of rust + lsp](https://www.youtube.com/watch?v=E2mKJ73M9pg)
  - [Example of rust with nvim + lsp ](https://www.youtube.com/watch?v=E2mKJ73M9pg)
+ - [How to use autocmd](https://www.youtube.com/watch?v=qN6BuJpsFbQ)
+ - [markdown setup by linkarzu (including images rendering)](https://linkarzu.com/posts/neovim/markdown-setup-2025/#meanderingprogrammerrender-markdownnvim) 
+ - [linkazu demonstrating and explaining its setup to render images in markdown](https://www.youtube.com/watch?v=0O3kqGwNzTI)
  - https://www.youtube.com/watch?v=g1gyYttzxcI
 
 
diff --git a/TODO.md b/TODO.md
index e30a01d..aab5533 100644
--- a/TODO.md
+++ b/TODO.md
@@ -5,6 +5,8 @@
 
   - [ ] telescope: Install and learn how to use
   - [ ] cmp-nvim or cmp-nvim-lsp or ... (autocompletion)
+  - [ ] choose a linter
+  - [ ]
 
 ## lsp
 
@@ -15,3 +17,6 @@
 ## Files browsing
 
   - [ ] see the current path of oil
+
+## auto-completion
+  - [ ] learn how it works in neovim
diff --git a/lazy-lock.json b/lazy-lock.json
index 518cbd1..f2708aa 100644
--- a/lazy-lock.json
+++ b/lazy-lock.json
@@ -1,13 +1,17 @@
 {
+  "image.nvim": { "branch": "master", "commit": "446a8a5cc7a3eae3185ee0c697732c32a5547a0b" },
   "kanagawa.nvim": { "branch": "master", "commit": "aef7f5cec0a40dbe7f3304214850c472e2264b10" },
   "lazy.nvim": { "branch": "main", "commit": "85c7ff3711b730b4030d03144f6db6375044ae82" },
+  "luarocks.nvim": { "branch": "main", "commit": "1db9093915eb16ba2473cfb8d343ace5ee04130a" },
   "mason-lspconfig.nvim": { "branch": "main", "commit": "b1d9a914b02ba5660f1e272a03314b31d4576fe2" },
   "mason.nvim": { "branch": "main", "commit": "57e5a8addb8c71fb063ee4acda466c7cf6ad2800" },
   "mini.icons": { "branch": "main", "commit": "ff2e4f1d29f659cc2bad0f9256f2f6195c6b2428" },
+  "mini.nvim": { "branch": "main", "commit": "dce9bc4e19d02d5c37fe71c16f40f8a5536b0386" },
   "mini.statusline": { "branch": "main", "commit": "e331175f10d9f400b42523b3890841aba202ce16" },
   "nvim-lspconfig": { "branch": "master", "commit": "abf6d190f2c06818489c0bd4b926e7e3a06c5e51" },
   "nvim-treesitter": { "branch": "master", "commit": "42fc28ba918343ebfd5565147a42a26580579482" },
   "oil.nvim": { "branch": "master", "commit": "7e1cd7703ff2924d7038476dcbc04b950203b902" },
+  "render-markdown.nvim": { "branch": "main", "commit": "13bfaaabaaf732cf58d14004ed79b331bb40b838" },
   "rustaceanvim": { "branch": "master", "commit": "88575b98bb9937fb9983ddec5e532b67e75ce677" },
   "showkeys": { "branch": "main", "commit": "cb0a50296f11f1e585acffba8c253b9e8afc1f84" },
   "smear-cursor.nvim": { "branch": "main", "commit": "abfa5835920b1d76c0e24e1465a618ad914be90a" },
diff --git a/lua/config/keymap.lua b/lua/config/keymap.lua
index d3aa488..c811beb 100644
--- a/lua/config/keymap.lua
+++ b/lua/config/keymap.lua
@@ -16,6 +16,12 @@ vim.keymap.set('n', "<leader>wq", "<cmd>wq<CR>", { desc = "Save and quit" } )
 vim.keymap.set('n', "<leader>qq", "<cmd>q!<CR>", { desc = "Force to quit without saving" } ) 
 
 
+-- switch between windows
+vim.keymap.set("n", "<leader>j", "<C-w>j")
+vim.keymap.set("n", "<leader>h", "<C-w>h")
+vim.keymap.set("n", "<leader>k", "<C-w>k")
+vim.keymap.set("n", "<leader>l", "<C-w>l")
+
 -- TERMINAL
 -- exit t mode
 km("t", "<Esc>", "<C-\\><C-n>", { desc = "Exit terminal mode"})
diff --git a/lua/plugins/image.lua b/lua/plugins/image.lua
new file mode 100644
index 0000000..b395975
--- /dev/null
+++ b/lua/plugins/image.lua
@@ -0,0 +1,48 @@
+return {
+    "3rd/image.nvim",
+    build = false, -- so that it doesn't build the rock https://github.com/3rd/image.nvim/issues/91#issuecomment-2453430239
+    opts = {
+        processor = "magick_cli",
+  },
+    config = function()
+      require("image").setup({
+  backend = "kitty", -- or "ueberzug" or "sixel"
+  processor = "magick_cli", -- or "magick_rock"
+  integrations = {
+    markdown = {
+      enabled = true,
+      clear_in_insert_mode = false,
+      download_remote_images = true,
+      only_render_image_at_cursor = false,
+      only_render_image_at_cursor_mode = "popup", -- or "inline"
+      floating_windows = false, -- if true, images will be rendered in floating markdown windows
+      filetypes = { "markdown", "vimwiki" }, -- markdown extensions (ie. quarto) can go here
+    },
+    neorg = {
+      enabled = true,
+      filetypes = { "norg" },
+    },
+    typst = {
+      enabled = true,
+      filetypes = { "typst" },
+    },
+    html = {
+      enabled = false,
+    },
+    css = {
+      enabled = false,
+    },
+  },
+  max_width = nil,
+  max_height = nil,
+  max_width_window_percentage = nil,
+  max_height_window_percentage = 50,
+  scale_factor = 1.0,
+  window_overlap_clear_enabled = false, -- toggles images when windows are overlapped
+  window_overlap_clear_ft_ignore = { "cmp_menu", "cmp_docs", "snacks_notif", "scrollview", "scrollview_sign" },
+  editor_only_render_when_focused = false, -- auto show/hide images when the editor gains/looses focus
+  tmux_show_only_in_active_window = false, -- auto show/hide images in the correct Tmux window (needs visual-activity off)
+  hijack_file_patterns = { "*.png", "*.jpg", "*.jpeg", "*.gif", "*.webp", "*.avif" }, -- render image files as images when opened
+})
+  end
+}
diff --git a/lua/plugins/lspconfig.lua.bak b/lua/plugins/lspconfig.lua.bak
deleted file mode 100644
index 3657f57..0000000
--- a/lua/plugins/lspconfig.lua.bak
+++ /dev/null
@@ -1,3 +0,0 @@
-return {
-  "neovim/nvim-lspconfig"
-}
diff --git a/lua/plugins/luarocks.lua b/lua/plugins/luarocks.lua
new file mode 100644
index 0000000..c8dfe6c
--- /dev/null
+++ b/lua/plugins/luarocks.lua
@@ -0,0 +1,5 @@
+return {
+  "vhyrro/luarocks.nvim",
+  priority = 1000, -- Very high priority is required, luarocks.nvim should run as the first plugin in your config.
+  config = true,
+}
diff --git a/lua/plugins/render-markdown.lua b/lua/plugins/render-markdown.lua
new file mode 100644
index 0000000..a516a41
--- /dev/null
+++ b/lua/plugins/render-markdown.lua
@@ -0,0 +1,9 @@
+return {
+    'MeanderingProgrammer/render-markdown.nvim',
+    dependencies = { 'nvim-treesitter/nvim-treesitter', 'nvim-mini/mini.nvim' },            -- if you use the mini.nvim suite
+    -- dependencies = { 'nvim-treesitter/nvim-treesitter', 'nvim-mini/mini.icons' },        -- if you use standalone mini plugins
+    -- dependencies = { 'nvim-treesitter/nvim-treesitter', 'nvim-tree/nvim-web-devicons' }, -- if you prefer nvim-web-devicons
+    ---@module 'render-markdown'
+    ---@type render.md.UserConfig
+    opts = {},
+}