clarify validator pointers

Author: dckc

main/guides/getting-started/syncing-up.md

@@ -1,13 +1,15 @@
-# Syncing Up on Mainnet
+# Mainnet Validators
 
-Tune in to [Network Upgrades Governance](https://community.agoric.com/c/governance/network-upgrades/15) in the [Agoric Community Forum](https://community.agoric.com/) for changes to mainnet node operations, including deployment of
-new [agoric-sdk software releases](https://github.com/Agoric/agoric-sdk/releases).
-
-Mainnet operation is supported on a peer-to-peer basis. Much of the discussion is on the [Agoric discord server](https://agoric.com/discord).
+Mainnet operation is supported on a peer-to-peer basis.
 [Validator profiles](https://community.agoric.com/c/validators/validator-profiles/24)
-highlight relevant community contributions. For example, guides
-for state-sync server setup are available from
+highlight relevant community contributions.
+For example, guides for server setup are available from
 [polkachu](https://github.com/Agoric/validator-profiles/tree/main/polkachu.com) and
 [kjnodes](https://community.agoric.com/t/validator-profile-kjnodes/314).
 
+Much of the discussion is on the [Agoric discord server](https://agoric.com/discord).
+ 
+Tune in to [Network Upgrades Governance](https://community.agoric.com/c/governance/network-upgrades/15) in the [Agoric Community Forum](https://community.agoric.com/) for changes to mainnet node operations, including deployment of
+new [agoric-sdk software releases](https://github.com/Agoric/agoric-sdk/releases).
+
 See also: [Guide to Agoric Testnets](https://community.agoric.com/t/guide-to-agoric-testnets/515).