Add a "Getting started" guide for the dataframe API (#7643) #3317

Job	Run time
Build web viewer / Build web viewer	2m 23s
Checks / Lint markdown	19s
Checks / Check links	1m 56s
Checks / Misc formatting	23s
Checks / Rerun lints	44s
Checks / Check if running codegen would produce any changes	1m 17s
Checks / Spell Check	6s
Checks / C++ formatting check	3m 4s
Checks / Python lints (ruff, mypy, …)	40s
Checks / matrix_prep	3s
Checks / Test Python Docs	29s
Checks / Rust lints (fmt, check, clippy, tests, doc)	10m 11s
Checks / Test on macOS and Windows	0s
Checks / C++ build & test - Linux x64, C++17	3m 24s
Checks / C++ build & test - Linux x64, C++20	3m 34s
Checks / C++ build & test - Windows x64	9m 33s
Checks / C++ build & test - Mac aarch64	7m 50s
Linux-x64: Build & Upload rerun_c / Set Config (linux-x64)	2s
Linux-x64: Build & Upload rerun-cli / Set Config (linux-x64)	2s
Deploy Docs / Python	2m 0s
Linux-x64: Build & Upload rerun-cli / Build rerun-cli (ubuntu-latest-16-cores)	3m 54s
Linux-x64: Build & Upload rerun_c / Build rerun_c (ubuntu-latest-16-cores)	1m 25s
Upload Web / Upload web build to google cloud (wasm32 + wasm-bindgen)	17s
Deploy Docs / Rust	7m 52s
Linux-x64: Build & Upload Wheels / Set Config (linux-x64)	1s
Linux-x64: Build & Upload Wheels / Build Wheels (ubuntu-latest-16-cores)	5m 10s
Linux-x64: Test Wheels / Set Config (linux-x64)	3s
Build Examples / Build Examples	3m 6s
Linux-x64: Test Wheels / Test Wheels (ubuntu-latest-16-cores)	7m 3s
Deploy Docs / Cpp	1s
Track Sizes / Track Sizes	2m 28s
Upload Examples / Upload Examples to Google Cloud	30s
	1h 19m 50s

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