Add to the sendbird webhook docs that "master api key" is needed to decode signature

2

Hey @SamKK,

This was discussed to some degree here: Help with authenticating webhook signature - #2 by Jason

I’ll look into getting a note added into the documentation to reflect the requirements.

If you need to reset the master_api key, you can reach out to the support team and we can have it reset for you.

Thanks,
Tyler