fix: update onboarding invite docs link

chat_interface.py

@@ -5081,11 +5081,14 @@ def create_chat_interface():
                                     display = (display_name or clean_email.split("@")[0]).strip()
                                     app_url = resolve_app_url_for_invite(request).rstrip("/") + "/"
                                     invite = (
-                                        f"Hi {display} - you now have access to DemoPrep.\n\n"
+                                        f"Hi {display}, I set up DemoPrep access for you.\n\n"
                                         f"App: {app_url}\n"
+                                        "Docs: https://thoughtspot-dp-demoprep-doc.static.hf.space/index.html\n"
                                         f"Username: {clean_email}\n"
                                         f"Temporary password: {temp_password}\n\n"
-                                        "Please sign in and immediately change your password before running demos."
+                                        "When you first sign in, DemoPrep will ask you to choose a new password. "
+                                        "After that, you can start building demos from the main screen.\n\n"
+                                        "If anything looks off, drop a note in the DemoPrep Slack channel."
                                     )
                                     if not um._supports_must_change_password():
                                         invite += (