Add MarkItDown as tainted (#1558)

Microsoft-owned project with 186,000 GitHub stars. No safe version, as the first commit was in [November 2024](https://github.com/microsoft/markitdown/graphs/contributors?all=1).

Reviewed-on: https://codeberg.org/ethical-foss/open-slopware/pulls/1558
Reviewed-by: Ethical FOSS admin <ethical-foss-admin@noreply.codeberg.org>

README.md

@@ -1176,6 +1176,7 @@ A desktop environment usually depends on a specific window manager to work.
 | [cmark](https://github.com/commonmark/cmark) | [`0.31.2`](https://github.com/commonmark/cmark/releases/tag/0.31.2) <br /> [`7c38779`](https://github.com/commonmark/cmark/commits/7c3877921c69fc02f2ab076a71efea6899b481c0) | [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/commonmark/cmark/commit/9dc68b89800ccba49551f2055f2b41e20e9039b1), [2](https://github.com/commonmark/cmark/commit/cb3fe8c4dcfafb5c291096a1afc84723015e52dc), [3](https://github.com/commonmark/cmark/commit/8c9dcdd2d71cc191f2f9a9791b06e58c9aec5ec3)) <br /> [![Condones LLM Ingestion](./badges/condones-llm-ingestion.svg)](#condones-llm-ingestion) ([1](https://github.com/commonmark/cmark/issues/599#issuecomment-3914290545)) | [Comrak] [![Anti-AI Policy](./badges/anti-ai-policy.svg)](#anti-ai-policy) ([1](https://github.com/kivikakk/comrak/blob/main/CONTRIBUTING.md#policy-on-llm-contributions)) <br /> [discount](https://www.pell.portland.or.us/~orc/Code/discount/) <br /> [lowdown] <br /> [Markdown.pl](https://daringfireball.net/projects/markdown/) |
 | [commonmark-java](https://github.com/commonmark/commonmark-java) | [`e62bca1`](https://github.com/commonmark/commonmark-java/commit/e62bca11062dc52b4f7a28d1da3d16c49ba81628) | [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/commonmark/commonmark-java/commit/f3be489803f3446e610f2948fd77d4e821a5cefd), [2](https://github.com/commonmark/commonmark-java/commit/5815c3c0b17f52b53e65465fd8ff65da8e6304fa), [3](https://github.com/commonmark/commonmark-java/commit/057f13dd8e9472a45c714ad0c06a1a425ec21f61)) | [flexmark-java](https://github.com/vsch/flexmark-java) |
 | [doxx](https://github.com/bgreenwell/doxx) | [`v0.1.1`](https://github.com/bgreenwell/doxx/releases/tag/v0.1.1) | [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/bgreenwell/doxx/blob/devel/CONTRIBUTING.md#contributing-to-doxx), [2](https://github.com/bgreenwell/doxx/blob/devel/AGENTS.md), [3](https://github.com/bgreenwell/doxx/commit/b3cb80d9e2c299dbc74e61c5ab00575d9be3d722)) | [docx2txt](https://docx2txt.sourceforge.net/) <br /> [python-docx2txt](https://github.com/ankushshah89/python-docx2txt) <br /> [wvWare](https://wvware.sourceforge.net/) |
+| [MarkItDown](https://github.com/microsoft/markitdown) | None | [![AI Functionality](./badges/ai-functionality.svg)](#ai-functionality) ([1](https://github.com/microsoft/markitdown)) <br /> [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/microsoft/markitdown/commit/0b3a45234ef8cc060e9a64e4dbd36d80eaa81ff3)) <br /> [![AI Code Reviews](./badges/ai-code-reviews-purple.svg)](#ai-code-reviews) ([1](https://github.com/microsoft/markitdown/pull/2506), [2](https://github.com/microsoft/markitdown/pull/2450), [3](https://github.com/microsoft/markitdown/pull/2442)) <br /> [![AI sponsored](./badges/ai-sponsored-blue.svg)](#sponsored-by-ai) ([1](https://github.com/microsoft/markitdown)) | [![Request for Help](./badges/request-for-help.svg)](#request-for-help) |
 | [md4c](https://github.com/mity/md4c) | [`0.5.3`](https://github.com/mity/md4c/releases/tag/release-0.5.3) <br /> [`5860a02`](https://github.com/mity/md4c/commits/5860a022c2dfa6668a2b1aa19db8dca043ffeab0) | [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/mity/md4c/commit/f1693180b04badc6ec986ff6e0972b9b9b69b1d1), [2](https://github.com/mity/md4c/commit/84c5d9245d7a359be1fa4acc2ba4e66fcae4ac96)) | [Comrak] [![Anti-AI Policy](./badges/anti-ai-policy.svg)](#anti-ai-policy) ([1](https://github.com/kivikakk/comrak/blob/main/CONTRIBUTING.md#policy-on-llm-contributions)) <br /> [lowdown] |
 | [Pandoc](https://pandoc.org/) | [`3.8`](https://github.com/jgm/pandoc/releases/tag/3.8) <br /> [`0ce85b0`](https://github.com/jgm/pandoc/commit/0ce85b0cfa8e5d3155dddc77b1408b4d7d7890fa) | [![Permissive AI policy](./badges/permissive-ai-policy-orange.svg)](#permissive-ai-policy) ([1](https://github.com/jgm/pandoc/pull/11132), [2](https://github.com/jgm/pandoc/pull/11396), [3](https://github.com/jgm/pandoc/commit/4b26f50118d7c0fdb3c1095dc26ba671e1b4b538)) | [lowdown] <br /> [Typst](https://github.com/typst/typst) |