feat: add DipDup (#998)

docs/build/tooling/data-indexers.md

@@ -27,6 +27,10 @@ Welcome to the Analytics page, a comprehensive hub dedicated to interacting with
 
 [Flair](https://docs.flair.dev/) offers reusable **indexing primitives** (such as fault-tolerant RPC ingestors, custom processors, re-org aware database integrations) to make it easy to receive, transform, store and access your on-chain data.
 
+### DipDup
+
+[DipDup](https://dipdup.io/) is a Python framework for building smart contract indexers. It helps developers focus on business logic instead of writing a boilerplate to store and serve data. DipDup-based indexers are selective, which means only required data is requested. This approach allows to achieve faster indexing times and decreased load on underlying APIs.
+
 ### Usage guides
 
 - [the-graph](../tutorials/tooling-guides/the-graph.md)