docs: update README.md

README.md

@@ -355,6 +355,21 @@ vim.api.nvim_create_autocmd("User", {
 })
 ```
 
+Or, to ensure that certain filetypes are removed from the session before it's saved:
+
+```lua
+vim.api.nvim_create_autocmd("User", {
+  pattern = "PersistedSavePre",
+  callback = function()
+    for _, buf in ipairs(vim.api.nvim_list_bufs()) do
+      if vim.bo[buf].filetype == "codecompanion" then
+        vim.api.nvim_buf_delete(buf, { force = true })
+      end
+    end
+  end,
+})
+```
+
 **Highlights**
 
 The plugin also comes with pre-defined highlight groups for the Telescope implementation:

doc/persisted.nvim.txt

@@ -369,6 +369,22 @@ session, saving the current session before clearing all of the open buffers:
     })
 <
 
+Or, to ensure that certain filetypes are removed from the session before it’s
+saved:
+
+>lua
+    vim.api.nvim_create_autocmd("User", {
+      pattern = "PersistedSavePre",
+      callback = function()
+        for _, buf in ipairs(vim.api.nvim_list_bufs()) do
+          if vim.bo[buf].filetype == "codecompanion" then
+            vim.api.nvim_buf_delete(buf, { force = true })
+          end
+        end
+      end,
+    })
+<
+
 **Highlights**
 
 The plugin also comes with pre-defined highlight groups for the Telescope