docs(README): add copy session, link to telescope

README.md

@@ -177,8 +177,10 @@ You can use Telescope to see, load, and delete your sessions. It's enabled by de
  -- Mode can be a string or a table, e.g. {"i", "n"} for both insert and normal mode
  delete_session = { "i", "<C-D>" },
  alternate_session = { "i", "<C-S>" },
+ copy_session = { "i", "<C-Y>" },
  },
  -- Can also set some Telescope picker options
+ -- For all options, see: https://github.com/nvim-telescope/telescope.nvim/blob/master/doc/telescope.txt#L112
  theme_conf = {
  border = true,
  -- layout_config = {