Multiple DNS servers in resolver directive

The documentation is not clear. Can I provide two IP addresses in the
resolver config directive?

Example:

resolver 208.67.222.222 208.67.220.220;

Posted at Nginx Forum:

On Tue, Oct 15, 2013 at 02:03:10AM -0400, justin wrote:

The documentation is not clear. Can I provide two IP addresses in the
resolver config directive?

Example:

resolver 208.67.222.222 208.67.220.220;

Please use official docs, not Wiki:

http://nginx.org/r/resolver