v2.19.0

What's changed

• Remove line break in README.md (5e5f031)
• docs: badges in two rows — status, then versions and downloads (b0b11fe)
• docs: one badge row, no issue numbers in Status, browser demo after Install (a59b048)
• docs: tighten the README opening (9ffc7fa)
• docs: open the README with what docling.rs is, install and use (86a98e5)
• feat(mcp): warm PDF/image pipeline between calls; stop glibc heap creep (5375f47)
• feat(cli): docling-rs mcp — an MCP server with MarkItDown's convert_to_markdown (99b9d14)

Full changelog: v2.18.1...v2.19.0