Add Envio to indexers section

docs/Build/DeveloperResources/Indexers/Envio.md

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+---
+sidebar_position: 0
+---
+
+# Envio
+
+[Envio](https://envio.dev/?utm_source=bitlayer&utm_medium=partner-docs) is a high-performance indexing framework that turns smart contract events into a queryable GraphQL API, with managed hosting on Envio Cloud.
+
+HyperIndex, Envio's indexing framework, natively supports indexing any EVM chain out of the box. That means you can index Bitlayer today using RPC as the data source, no waiting for dedicated support.
+
+## Why Envio?
+
+- Native support for any EVM chain, including Bitlayer, out of the box
+- Real-time and historical data through a single GraphQL API
+- Automatic indexer generation from a contract address with `pnpx envio init`
+- TypeScript, JavaScript, or ReScript event handlers, with reorg support
+- Managed hosting on Envio Cloud, or self-host your own deployment
+
+## Indexing Bitlayer with Envio
+
+Bitlayer uses RPC as the data source. Define it in your `config.yaml` using chain ID `200901`:
+
+```yaml
+name: IndexerName # Specify indexer name
+chains:
+  - id: 200901 # Bitlayer Mainnet
+    rpc: https://rpc.bitlayer.org
+    start_block: START_BLOCK_NUMBER # Specify the starting block
+    contracts:
+      - name: ContractName
+        address:
+          - "0xYourContractAddress"
+        events:
+          - event: Event # Specify event
+```
+
+See the [RPC data source guide](https://docs.envio.dev/docs/HyperIndex/rpc-sync?utm_source=bitlayer&utm_medium=partner-docs) and the [configuration guide](https://docs.envio.dev/docs/HyperIndex/configuration-file?utm_source=bitlayer&utm_medium=partner-docs) for the full set of options. Want HyperSync speed for Bitlayer? Request it on [Discord](https://discord.gg/envio).
+
+## Getting Started
+
+1. Initialise your indexer and import your Bitlayer contract with `pnpx envio init`. See the [Quickstart](https://docs.envio.dev/docs/HyperIndex/quickstart?utm_source=bitlayer&utm_medium=partner-docs).
+2. Configure Bitlayer and your RPC in `config.yaml`.
+3. Run your indexer locally with Docker, or deploy it with a git-based workflow on [Envio Cloud](https://docs.envio.dev/docs/HyperIndex/hosted-service-deployment?utm_source=bitlayer&utm_medium=partner-docs).
+4. Query your indexed data through the GraphQL API.
+
+Need help setting up your indexer? Reach out on [Discord](https://discord.gg/envio), where the team is always happy to help.
+
+[Website](https://envio.dev/?utm_source=bitlayer&utm_medium=partner-docs) | [Docs](https://docs.envio.dev/?utm_source=bitlayer&utm_medium=partner-docs) | [Supported Networks](https://docs.envio.dev/docs/HyperIndex/supported-networks?utm_source=bitlayer&utm_medium=partner-docs) | [Discord](https://discord.gg/envio) | [X](https://twitter.com/envio_indexer) | [GitHub](https://github.com/enviodev)