Make package readmes slightly less empty #3248

Job	Run time
lint	1m 34s
format	48s
mypy (./packages/autogen-core)	2m 10s
pyright (./packages/autogen-core)	1m 6s
mypy (./packages/autogen-magentic-one)	1m 5s
pyright (./packages/autogen-magentic-one)	56s
mypy (./packages/agbench)	1m 3s
pyright (./packages/agbench)	1m 1s
mypy (./packages/autogen-ext)	1m 47s
pyright (./packages/autogen-ext)	59s
check-proto-changes-python	2m 7s
mypy (./packages/autogen-agentchat)	1m 6s
pyright (./packages/autogen-agentchat)	53s
pyright (./packages/magentic-one-cli)	57s
mypy (./packages/magentic-one-cli)	1m 7s
codecov (./packages/autogen-core)	58s
docs (./packages/autogen-core)	1m 34s
codecov (./packages/autogen-magentic-one)	2m 35s
docs-example-check (./packages/autogen-core)	2m 27s
codecov (./packages/autogen-ext)	2m 35s
codecov (./packages/autogen-agentchat)	1m 5s
markdown-code-lint	2m 7s
samples-code-check	55s
test (./packages/autogen-core)	1m 0s
test (./packages/autogen-magentic-one)	2m 4s
test (./packages/autogen-ext)	2m 20s
test (./packages/autogen-agentchat)	54s
	39m 13s

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