Fix the AsyncLoggerConfig ring buffer size property name in the manual#4038

vy merged 2 commits intoapache:2.xapache/logging-log4j2:2.xfrom

dimitarndimitrov:fix-async-logger-docs-config-ring-bufferdimitarndimitrov/logging-log4j2:fix-async-logger-docs-config-ring-bufferCopy head branch name to clipboard