Update AsyncAppender manual with Conversant Disruptor info
Update AsyncAppender manual with Conversant Disruptor info

GFriedrich/logging-log4j2,apache/logging-log4j2,GFriedrich/logging-log4j2,apache/logging-log4j2,xnslong/logging-log4j2,xnslong/logging-log4j2,apache/logging-log4j2,codescale/logging-log4j2,xnslong/logging-log4j2,codescale/logging-log4j2,GFriedrich/logging-log4j2,codescale/logging-log4j2