mv module integrations docs (#8101)

docs/extras/integrations/providers/diffbot.mdx

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+# Diffbot
+
+>[Diffbot](https://docs.diffbot.com/docs) is a service to read web pages. Unlike traditional web scraping tools, 
+> `Diffbot` doesn't require any rules to read the content on a page.
+>It starts with computer vision, which classifies a page into one of 20 possible types. Content is then interpreted by a machine learning model trained to identify the key attributes on a page based on its type.
+>The result is a website transformed into clean-structured data (like JSON or CSV), ready for your application.
+
+## Installation and Setup
+
+Read [instructions](https://docs.diffbot.com/reference/authentication) how to get the Diffbot API Token.
+
+## Document Loader
+
+See a [usage example](/docs/modules/data_connection/document_loaders/integrations/diffbot.html).
+
+```python
+from langchain.document_loaders import DiffbotLoader
+```