diff --git a/init.lua b/init.lua
index fc038f5..430530d 100644
--- a/init.lua
+++ b/init.lua
@@ -336,8 +336,8 @@ require('nvim-treesitter.configs').setup {
 }
 
 -- Diagnostic keymaps
-vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, { desc = 'Go to previous diagnostic message' })
-vim.keymap.set('n', ']d', vim.diagnostic.goto_next, { desc = 'Go to next diagnostic message' })
+vim.keymap.set('n', ',d', vim.diagnostic.goto_prev, { desc = 'Go to previous diagnostic message' })
+vim.keymap.set('n', '.d', vim.diagnostic.goto_next, { desc = 'Go to next diagnostic message' })
 vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float, { desc = 'Open floating diagnostic message' })
 vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist, { desc = 'Open diagnostics list' })
 
diff --git a/lua/custom/plugins/markdown-preview.lua b/lua/custom/plugins/markdown-preview.lua
new file mode 100644
index 0000000..8ddde04
--- /dev/null
+++ b/lua/custom/plugins/markdown-preview.lua
@@ -0,0 +1,6 @@
+return {
+    "iamcco/markdown-preview.nvim",
+    cmd = { "MarkdownPreviewToggle", "MarkdownPreview", "MarkdownPreviewStop" },
+    ft = { "markdown" },
+    build = function() vim.fn["mkdp#util#install"]() end,
+}