diff --git a/README.md b/README.md
index e103d90..cd5aa9b 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,27 @@ Add to your `spec_helper.rb` or `rails_helper.rb`:
 ```
 require "chat_notifier/rspec_formatter"
 ```
+
+### Debug your Slack setup
+
+Create rake task to test the connection to your Slack channel
+
+```ruby
+namespace :chat_notifier do
+  task debug: :environment do
+    unless ENV["SLACK_WEBHOOK_URL"]
+      puts "You MUST set the environment variables for:\nSLACK_WEBHOOK_URL"
+      return
+    end
+    ENV["DEBUG"] = "1"
+    ENV["CURRENT_REPOSITORY_URL"] = "https://example.com"
+    ENV["TEST_RUN_ID"] = "9999"
+    require "chat_notifier"
+
+    failure = ChatNotifier::DebugExceptionLocation.new(location: "fake/path.rb")
+    summary = ChatNotifier::DebugSummary.new(failed_examples: [failure])
+
+    ChatNotifier.debug!(ENV, summary:)
+  end
+end
+```