Update readme

Author: zachborboa

README.md

@@ -265,6 +265,7 @@ Curl::setDefaultTimeout()
 Curl::setDefaultUserAgent()
 Curl::setDefaultXmlDecoder()
 Curl::setDigestAuthentication($username, $password = '')
+Curl::setFile($file)
 Curl::setHeader($key, $value)
 Curl::setHeaders($headers)
 Curl::setJsonDecoder($mixed)
@@ -276,6 +277,7 @@ Curl::setProxy($proxy, $port = null, $username = null, $password = null)
 Curl::setProxyAuth($auth)
 Curl::setProxyTunnel($tunnel = true)
 Curl::setProxyType($type)
+Curl::setRange($range)
 Curl::setReferer($referer)
 Curl::setReferrer($referrer)
 Curl::setRetry($mixed)
@@ -314,6 +316,7 @@ MultiCurl::setCookieJar($cookie_jar)
 MultiCurl::setCookieString($string)
 MultiCurl::setCookies($cookies)
 MultiCurl::setDigestAuthentication($username, $password = '')
+MultiCurl::setFile($file)
 MultiCurl::setHeader($key, $value)
 MultiCurl::setHeaders($headers)
 MultiCurl::setJsonDecoder($mixed)
@@ -325,6 +328,7 @@ MultiCurl::setProxy($proxy, $port = null, $username = null, $password = null)
 MultiCurl::setProxyAuth($auth)
 MultiCurl::setProxyTunnel($tunnel = true)
 MultiCurl::setProxyType($type)
+MultiCurl::setRange($range)
 MultiCurl::setReferer($referer)
 MultiCurl::setReferrer($referrer)
 MultiCurl::setRetry($mixed)