Add ConvertToMarkdown Automator Quick Action

Finder service that converts files to Markdown using pandoc.
Supports all pandoc input formats with macOS notifications.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

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+# Convert to Markdown — Automator Quick Action
+
+Converts files to Markdown via pandoc directly from the Finder right-click menu.
+
+## Requirements
+
+- macOS 12+
+- [pandoc](https://pandoc.org/installing.html): `brew install pandoc`
+
+## Installation
+
+1. Copy `ConvertToMarkdown.workflow` to `~/Library/Services/`
+2. Refresh services: `/System/Library/CoreServices/pbs -update`
+
+Or in one command:
+
+```bash
+cp -r ConvertToMarkdown.workflow ~/Library/Services/
+/System/Library/CoreServices/pbs -update
+```
+
+## Usage
+
+Right-click any supported file in Finder → **Services → Convert to Markdown**
+
+The output `.md` file is saved in the same folder as the original.
+
+## Supported formats
+
+`.docx` `.odt` `.pptx` `.xlsx` `.epub` `.html` `.rtf` `.tex` `.rst` `.org` `.csv` `.tsv` `.json` `.xml` `.ipynb` `.fb2` `.adoc` `.textile` `.typ` and more.
+
+> `.doc` (old Word format) is **not supported** by pandoc. Save as `.docx` first.
+
+## If the menu item doesn't appear
+
+- Check **System Settings → Privacy & Security → Extensions → Finder** — make sure the action is enabled
+- Or go to **System Settings → Keyboard → Keyboard Shortcuts → Services**