Update an example

Author: mdmintz

examples/cdp_mode/ReadMe.md

@@ -53,6 +53,7 @@ from seleniumbase import SB
 with SB(uc=True, test=True, locale="en") as sb:
     url = "https://gitlab.com/users/sign_in"
     sb.activate_cdp_mode(url)
+    sb.sleep(1)
     sb.uc_gui_click_captcha()
     sb.sleep(2)
 ```