docs: update server docs (#11947)

## Description

ref: #11362



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

server/config/config.go

@@ -184,7 +184,7 @@ type GRPCWebConfig struct {
 // StateSyncConfig defines the state sync snapshot configuration.
 type StateSyncConfig struct {
 	// SnapshotInterval sets the interval at which state sync snapshots are taken.
-	// 0 disables snapshots. Must be a multiple of PruningKeepEvery.
+	// 0 disables snapshots.
 	SnapshotInterval uint64 `mapstructure:"snapshot-interval"`
 
 	// SnapshotKeepRecent sets the number of recent state sync snapshots to keep.

server/rollback.go

@@ -18,7 +18,7 @@ func NewRollbackCmd(defaultNodeHome string) *cobra.Command {
 A state rollback is performed to recover from an incorrect application state transition,
 when Tendermint has persisted an incorrect app hash and is thus unable to make
 progress. Rollback overwrites a state at height n with the state at height n - 1.
-The application also roll back to height n - 1. No blocks are removed, so upon
+The application also rolls back to height n - 1. No blocks are removed, so upon
 restarting Tendermint the transactions in block n will be re-executed against the
 application.
 `,

server/start.go

@@ -167,7 +167,7 @@ is performed. Note, when enabled, gRPC will also be automatically enabled.
 	cmd.Flags().Uint64(FlagMinRetainBlocks, 0, "Minimum block height offset during ABCI commit to prune Tendermint blocks")
 
 	cmd.Flags().Bool(FlagAPIEnable, false, "Define if the API server should be enabled")
-	cmd.Flags().Bool(FlagAPISwagger, false, "Define if swagger documentation should automatically be registered (Note: api must also be enabled.)")
+	cmd.Flags().Bool(FlagAPISwagger, false, "Define if swagger documentation should automatically be registered (Note: the API must also be enabled)")
 	cmd.Flags().String(FlagAPIAddress, serverconfig.DefaultAPIAddress, "the API server address to listen on")
 	cmd.Flags().Uint(FlagAPIMaxOpenConnections, 1000, "Define the number of maximum open connections")
 	cmd.Flags().Uint(FlagRPCReadTimeout, 10, "Define the Tendermint RPC read timeout (in seconds)")
@@ -179,7 +179,7 @@ is performed. Note, when enabled, gRPC will also be automatically enabled.
 	cmd.Flags().Bool(flagGRPCEnable, true, "Define if the gRPC server should be enabled")
 	cmd.Flags().String(flagGRPCAddress, serverconfig.DefaultGRPCAddress, "the gRPC server address to listen on")
 
-	cmd.Flags().Bool(flagGRPCWebEnable, true, "Define if the gRPC-Web server should be enabled. (Note: gRPC must also be enabled.)")
+	cmd.Flags().Bool(flagGRPCWebEnable, true, "Define if the gRPC-Web server should be enabled. (Note: gRPC must also be enabled)")
 	cmd.Flags().String(flagGRPCWebAddress, serverconfig.DefaultGRPCWebAddress, "The gRPC-Web server address to listen on")
 
 	cmd.Flags().Uint64(FlagStateSyncSnapshotInterval, 0, "State sync snapshot interval")