trying to install peek for markdwon

after/plugin/peek.lua

@@ -0,0 +1,26 @@
+-- default config:
+require('peek').setup({
+  auto_load = true,        -- whether to automatically load preview when
+  -- entering another markdown buffer
+  close_on_bdelete = true, -- close preview window on buffer delete
+
+  syntax = true,           -- enable syntax highlighting, affects performance
+
+  theme = 'dark',          -- 'dark' or 'light'
+
+  update_on_change = true,
+
+  app = 'browser', -- 'webview', 'browser', string or a table of strings
+  -- explained below
+
+  filetype = { 'markdown' }, -- list of filetypes to recognize as markdown
+
+  -- relevant if update_on_change is true
+  throttle_at = 200000,   -- start throttling when file exceeds this
+  -- amount of bytes in size
+  throttle_time = 'auto', -- minimum amount of time in milliseconds
+  -- that has to pass before starting new render
+})
+
+vim.api.nvim_create_user_command('PeekOpen', require('peek').open, {})
+vim.api.nvim_create_user_command('PeekClose', require('peek').close, {})