Clarify Apache HTTP's default retry strategy #652
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The README claims that the underlying Apache HTTP client retries IOExceptions by default - which is misleading because there are four subclasses of IOException that are not retried documented in the Javadoc:
I got hit by a SocketTimeoutException not being retried because it extends InterruptedIOException.
This change is just an edit to the README to clarify that only some kinds of IOExceptions are retried and links to the Javadocs.