nvim: don't close Markdown preview when leaving the buffer

config/nvim/lua/fschauen/plugins/markdown-preview.lua

@@ -15,5 +15,11 @@ return {
 
   init = function()
     vim.g.mkdp_theme = "dark"
+
+    -- Don't close the preview when switching to another buffer.
+    vim.g.mkdp_auto_close = 0
+
+    -- Show preview page URL in command line when opening preview page.
+    vim.g.mkdp_echo_preview_url = 1
   end,
 }