Log processor: improve documentation
@@ -163,8 +163,8 @@ checks that message has attribute `reqId` containing value `xz 42`
```yaml
- message: cannot send COMMIT since does not have prepare quorum for PREPARE
```
-- `replica`: checks if message is from given replica, which could be a number
- or one of special strings:
+- `replica`: checks if message is from given replica, which could be a replica
+ index or one of special strings:
- `node`: message is actually from node, not replica
- `master`: message is from master replica or from node
- `backup`: message is from any of backup replicas
