reate your own speaker profiles failed with SSL error

Hi, 

i try to create my own speaker as the readme told me

```
speaker = interface.create_speaker(
    audio_path = "speaker/voice.wav"
)
interface.save_speaker(speaker, "speaker.json")

```

But I am facing the error: `URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: self-signed certificate in certificate chain (_ssl.c:1000)>`

Did anyone have this, too? 
