define "private network" (#954)

* define "private network"

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

* update wiki link

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

CONTRIBUTING.md

@@ -27,6 +27,6 @@ to propose changes to this document in a pull request.
 
 <!-- Links -->
 [I just have a quick question]: https://wiki.hyperledger.org/display/BESU/I+just+have+a+quick+question
-[Reporting bugs in the documentation]: https://wiki.hyperledger.org/display/BESU/Reporting+Bugs+in+the+Doc
+[Reporting bugs in the documentation]: https://wiki.hyperledger.org/display/BESU/Reporting+Bugs+in+the+Documentation
 [Submitting a documentation enhancement suggestion]: https://wiki.hyperledger.org/display/BESU/Suggesting+Documentation+Enhancements
 [Documentation style guide]: https://wiki.hyperledger.org/display/BESU/Besu+Documentation+Style+Guide

docs/HowTo/Get-Started/System-Requirements/System-Requirements-Private.md

@@ -5,7 +5,13 @@ description: System requirements to sync and run Besu
 
 # System requirements for private networks
 
-The system requirements for private networks depend on different factors, including the:
+A Hyperledger Besu private network is a network not connected to Ethereum Mainnet or an Ethereum testnet.
+Private networks typically use a different [chain ID](../../../Concepts/NetworkID-And-ChainID.md) and
+[consensus protocol](../../../Concepts/Consensus-Protocols/Overview-Consensus.md).
+Participation in private networks is typically restricted in some way, so the volume of traffic is
+much lower than Mainnet, resulting in lower system requirements.
+
+Private network system requirements depend on many factors, including:
 
 * Size of the world state for the network.
 * Number of transactions submitted to the network.

docs/HowTo/Get-Started/System-Requirements/System-Requirements-Public.md

@@ -5,9 +5,11 @@ description: System requirements to sync and run Besu
 
 # System requirements for public networks
 
-To determine system requirements, check CPU and disk space requirements using
-[Prometheus](../../Monitor/Metrics.md#monitor-node-performance-using-prometheus). Grafana provides a
-[sample dashboard](https://grafana.com/grafana/dashboards/10273) for Besu.
+You can use Hyperledger Besu on Ethereum Mainnet and public Ethereum testnets.
+
+Determine public network system requirements by checking CPU and disk space requirements using
+[Prometheus](../../Monitor/Metrics.md#monitor-node-performance-using-prometheus).
+Grafana provides a [sample dashboard](https://grafana.com/grafana/dashboards/10273) for Besu.
 
 !!! tip