docs: Important OS-Climate project announcement

Signed-off-by: Matthew Watkins <mwatkins@linuxfoundation.org>

README.md

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+> [!IMPORTANT]
+> On June 26 2024, Linux Foundation announced the merger of its financial services umbrella, the Fintech Open Source Foundation ([FINOS](https://finos.org)), with OS-Climate, an open source community dedicated to building data technologies, modeling, and analytic tools that will drive global capital flows into climate change mitigation and resilience; OS-Climate projects are in the process of transitioning to the [FINOS governance framework](https://community.finos.org/docs/governance); read more on [finos.org/press/finos-join-forces-os-open-source-climate-sustainability-esg](https://finos.org/press/finos-join-forces-os-open-source-climate-sustainability-esg)
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 # CRRF Data Extraction Toolkit
 
 A web application for PDF content and table extraction, featuring image-based visual layout analysis, indexed document search, batch processing and extraction result annotation.