Update doc for SRT

trunk/doc/README.md

@@ -37,6 +37,12 @@
 1. [ICE, rfc5245-2010-ice.pdf](http://github.com/ossrs/srs/wiki/doc/rfc5245-2010-ice.pdf): https://tools.ietf.org/html/rfc5245
 1. [SIP, rfc3261-2002-sip.pdf](http://github.com/ossrs/srs/wiki/doc/rfc3261-2002-sip.pdf): https://tools.ietf.org/html/rfc3261
 
+## SRT
+
+1. [Haivision_SRT_Open_Source_White_Paper.pdf](http://github.com/ossrs/srs/wiki/doc/Haivision_SRT_Open_Source_White_Paper.pdf)
+1. [SRT_Alliance_Deployment_Guide.pdf](http://github.com/ossrs/srs/wiki/doc/SRT_Alliance_Deployment_Guide.pdf)
+1. [SRT_Protocol_TechnicalOverview_DRAFT_2018-10-17.pdf](http://github.com/ossrs/srs/wiki/doc/SRT_Protocol_TechnicalOverview_DRAFT_2018-10-17.pdf)
+
 ## Others
 
 1. [kafka-160915-0553-82964.pdf](http://github.com/ossrs/srs/wiki/doc/kafka-160915-0553-82964.pdf), https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol