docs: bbn-test-5 landing page (#388)

bbn-test-5/README.md

@@ -0,0 +1,33 @@
+# Babylon testnet-5 Network
+
+Welcome to the network page for the Babylon Phase-2 testnet (`bbn-test-5`).
+This is your central hub 
+for network participation information, whether you're running a node, 
+operating as a validator, providing finality services, or participating 
+in the covenant committee.
+
+<!-- TODO: sync with devops on the things we should add here.
+## Network Parameters
+
+Off the top of my head:
+* Chain ID
+* Genesis file location
+* Seed nodes
+* RPC nodes
+* Snapshot
+
+We can fully link to our partners here.
+-->
+
+<!-- TODO: Uncover the following sections
+with each PR that is getting merged
+## Network Participants
+
+There are four types of participants in the Babylon network.
+Please see the setup and configuration guides below:
+
+- [Babylon Node Operators](babylon-node/README.md)
+- [Validators](babylon-validators/README.md)
+- [Finality Providers](https://github.com/babylonlabs-io/finality-providers)
+- [Covenant Committee](covenant-committee/README.md)
+-->