add deprecation info to private networks index page (#1742)

Co-authored-by: Byron Gravenorst <[email protected]>

docs/private-networks/index.md

@@ -8,23 +8,23 @@ tags:
   - private networks
 ---
 
-# Besu for private networks
+# Besu for private (permissioned) networks
 
 You can use Besu to develop enterprise applications requiring secure, high-performance transaction processing in a private network.
 
-A private (also known as permissioned) network is a network not connected to Ethereum Mainnet or an Ethereum testnet. Private networks typically use a different [chain ID](../public-networks/concepts/network-and-chain-id.md) and proof of authority consensus ([QBFT](how-to/configure/consensus/qbft.md), [IBFT 2.0](how-to/configure/consensus/ibft.md), or [Clique](how-to/configure/consensus/clique.md)).
+A private (also known as permissioned) network is a network not connected to Ethereum Mainnet or an Ethereum testnet. Private networks typically use a different [chain ID](../public-networks/concepts/network-and-chain-id.md) and proof of authority (PoA) consensus ([QBFT](how-to/configure/consensus/qbft.md), [IBFT 2.0](how-to/configure/consensus/ibft.md), or [Clique](how-to/configure/consensus/clique.md)).
 
-You can also [create a local development network](tutorials/ethash.md) using proof of work (Ethash).
+You can also [create a local development network using proof of work (PoW) (Deprecated)](tutorials/ethash.md).
 
-Besu supports enterprise features including [privacy](concepts/privacy/index.md) and [permissioning](concepts/permissioning/index.md).
+Besu supports enterprise features including [privacy (Deprecated)](concepts/privacy/index.md) and [permissioning](concepts/permissioning/index.md).
 
 Get started with the [Developer Quickstart](tutorials/quickstart.md) to rapidly generate local blockchain networks.
 
+If you have any questions about Besu for private (permissioned) networks, ask on the **besu-enterprise** channel on
+[Discord](https://discord.com/channels/905194001349627914/1172617318845657199).
+
 ## Architecture
 
 The following diagram outlines the high-level architecture of Besu for private networks.
 
 ![Private architecture](../assets/images/private-architecture.jpeg)
-
-If you have any questions about Besu for private networks, ask on the **besu** channel on
-[Discord](https://discord.gg/hyperledger).