The retry documentation is incorrect / lacking

[ee-usgs]

Describe the bug
The documentation only mentions a config option named 'automaticRetries(boolean)', which doesn't exist (at least not in 4.4.4). No other mention of how to enable, configure or use retry logic is included in the documentation.

[ryber]

Its
Unirest.config().retryAfter there are several different overloads. I'll get the docs updated eventually. They need a complete re-write