Update architecture diagrams (#1158)

Signed-off-by: Alexandra Tran <alexandra.tran@consensys.net>

Signed-off-by: Alexandra Tran <alexandra.tran@consensys.net>

docs/index.md

@@ -52,13 +52,9 @@ Besu doesn't support [key management](public-networks/how-to/send-transactions.m
 client. You can use [EthSigner](http://docs.ethsigner.consensys.net/en/latest/) with Besu to access
 your key store and sign transactions.
 
-## Besu architecture
+## Questions?
 
-The following diagram outlines the Besu high-level architecture.
-
-![Architecture](images/Architecture.png)
-
-If you have any questions about Besu or its architecture, contact us on the
+If you have any questions about Besu, contact us on the
 [Besu channel on Hyperledger Discord](https://discord.gg/hyperledger).
 
 Learn more about the [Hyperledger Foundation](https://www.hyperledger.org/about).

docs/private-networks/index.md

@@ -2,9 +2,6 @@
 # page icon, insider only, see https://squidfunk.github.io/mkdocs-material/reference/#setting-the-page-icon
 icon: material/book-lock-outline
 description: Private networks overview
-# hide feedback on this page as it's just an index page with not much content
-hide:
-  - feedback
 ---
 
 # Hyperledger Besu for private networks
@@ -24,3 +21,12 @@ Besu supports enterprise features including [privacy](concepts/privacy/index.md)
 
 Get started with the [Developer Quickstart](tutorials/quickstart.md) to rapidly generate local
 blockchain networks.
+
+## Architecture
+
+The following diagram outlines the high-level architecture of Besu for private networks.
+
+![Private architecture](../images/private-architecture.jpeg)
+
+If you have any questions about Besu for private networks, contact us on the
+[Besu channel on Hyperledger Discord](https://discord.gg/hyperledger).

docs/public-networks/index.md

@@ -2,9 +2,6 @@
 # page icon, insider only, see https://squidfunk.github.io/mkdocs-material/reference/#setting-the-page-icon
 icon: material/book-open-variant
 description: Public networks overview
-# hide feedback on this page as it's just an index page with not much content
-hide:
-  - feedback
 ---
 
 # Hyperledger Besu for public networks
@@ -15,3 +12,12 @@ proof-of-stake Ethereum networks such as Ethereum Mainnet, Goerli, and Sepolia.
 You can also run Besu using proof of work on [Ethereum Classic (ETC)](how-to/use-pow/mining.md).
 
 Get started by [installing Besu](get-started/install/index.md).
+
+## Architecture
+
+The following diagram outlines the high-level architecture of Besu for public networks.
+
+![Public architecture](../images/public-architecture.jpeg)
+
+If you have any questions about Besu for public networks, contact us on the
+[Besu channel on Hyperledger Discord](https://discord.gg/hyperledger).