consolidate backpressure/buffering info#2324

alexakreizinger merged 3 commits intomasterfluent/fluent-bit-docs:masterfrom

alexakreizinger/sc-153843/consolidate-info-from-buffering-backpressurefluent/fluent-bit-docs:alexakreizinger/sc-153843/consolidate-info-from-buffering-backpressureCopy head branch name to clipboard