nvim: open markdown preview in kiosk mode

.config/nvim/lua/loadplugins.lua

@@ -115,7 +115,15 @@ return require("lazy").setup({
     {
       "iamcco/markdown-preview.nvim",
       ft = { 'markdown' },
-      build = "cd app && yarn install"
+      build = "cd app && yarn install",
+      config = function ()
+        vim.cmd[[
+          function OpenMarkdownPreview (url)
+            execute "silent ! firefox --kiosk --new-window " . a:url
+          endfunction
+        ]]
+        vim.g.mkdp_browserfunc = "OpenMarkdownPreview"
+      end
     },
 
     -- automatic closing of brackets