Easy, take this course and download your certificate 🙂 You can even add this to your CV, just put it under “Professional Development” add the title of the course (Agile Crash Course), the year of completion and where you obtained your certification, in this case Udemy. If a company asks you for evidence, send them your certificate as an attachment via email. Although you should know I have never had anyone ask me for one of my many Agile certificates. Like I have never had a company ask me for my degree as an Engineer. I can send all of this of course, but I have never received that request. So don’t worry so much about formalities and add this to your CV.