add note about oasst2 being available (#3743) #1691

Job	Run time
pre-commit / pre-commit	1m 50s
build-backend / Build Images	1m 24s
build-bot / Build Images	38s
build-backend-worker / Build Images	1m 21s
build-inference-safety / Build Images	10m 51s
build-inference-server / Build Images	1m 57s
build-inference-worker-standalone / Build Images	1m 28s
build-inference-worker-full / Build Images	5m 11s
build-inference-worker-hf / Build Images	9m 10s
build-web / Build Images	5m 38s
deploy-to-node / deploy	3m 48s
	43m 16s

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