Correct two issues. User-Agent was giving error:  The format of value 'https://sefbkn.github.io/' is invalid. Updated to be in the proper format.
Correct two issues.
User-Agent was giving error:  The format of value 'https://sefbkn.github.io/' is invalid.
Updated to be in the proper format.

GET requests giving error:  ArgumentNullException: Value cannot be null.
Parameter name: content
new StringContent errors out if request.RequestBody is null, so set all of Content to null. Tried "" but that gave error that GET doesn't accept content.

sefbkn/gdax.netcore