docs: extend integration docs & README (#456)

Signed-off-by: Panos Vagenas <35837085+vagenas@users.noreply.github.com>

docs/integrations/bee.md

@@ -0,0 +1,9 @@
+Docling is available as an extraction backend in the [Bee][github] framework.
+
+- 💻 [Bee GitHub][github]
+- 📖 [Bee Docs][docs]
+- 📦 [Bee NPM][package]
+
+[github]: https://github.com/i-am-bee
+[docs]: https://i-am-bee.github.io/bee-agent-framework/
+[package]: https://www.npmjs.com/package/bee-agent-framework

docs/integrations/index.md

@@ -1 +1,6 @@
 Use the navigation on the left to browse through Docling integrations with popular frameworks and tools.
+
+
+<p align="center">
+  <img loading="lazy" alt="Docling" src="../assets/docling_ecosystem.png" width="100%" />
+</p>

docs/integrations/instructlab.md

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+Docling is powering document processing in [InstructLab](https://instructlab.ai/),
+enabling users to unlock the knowledge hidden in documents and present it to
+InstructLab's fine-tuning for aligning AI models to the user's specific data.
+
+More details can be found in this [blog post][blog].
+
+- 🏠 [InstructLab Home][home]
+- 💻 [InstructLab GitHub][github]
+- 🧑🏻‍💻 [InstructLab UI][ui]
+- 📖 [InstructLab Docs][docs]
+<!-- - 📝 [Blog post]() -->
+
+[home]: https://instructlab.ai
+[github]: https://github.com/instructlab
+[ui]: https://ui.instructlab.ai/
+[docs]: https://docs.instructlab.ai/
+[blog]: https://www.redhat.com/en/blog/docling-missing-document-processing-companion-generative-ai

docs/integrations/prodigy.md

@@ -0,0 +1,9 @@
+Docling is available in [Prodigy][home] as a [Prodigy-PDF plugin][plugin] recipe.
+
+- 🌐 [Prodigy Home][home]
+- 🔌 [Prodigy-PDF Plugin][plugin]
+- 🧑🏽‍🍳 [pdf-spans.manual Recipe][recipe]
+
+[home]: https://prodi.gy/
+[plugin]: https://prodi.gy/docs/plugins#pdf
+[recipe]: https://prodi.gy/docs/plugins#pdf-spans.manual

docs/integrations/spacy.md

@@ -1,3 +1,5 @@
+# spaCy
+
 Docling is available in [spaCy](https://spacy.io/) as the "SpaCy Layout" plugin:
 
 - 💻 [SpacyLayout GitHub][github]