chore: Fix promtail local config

Author: LashaJini

clients/cmd/promtail/promtail-local-config.yaml

@@ -1,9 +1,13 @@
 server:
   http_listen_port: 9080
   grpc_listen_port: 0
+  log_level: debug
 
 positions:
   filename: /tmp/positions.yaml
+  sync_period: 10s
+target_config:
+  sync_period: 10s
 
 clients:
   - url: http://localhost:3100/loki/api/v1/push

production/README.md

@@ -83,7 +83,7 @@ First, see the [build from source](../README.md) section of the root readme.
 Once Promtail is built, to run Promtail, use the following command:
 
 ```bash
-$ ./promtail -config.file=./cmd/promtail/promtail-local-config.yaml
+$ ./promtail -config.file=./clients/cmd/promtail/promtail-local-config.yaml
 ...
 ```