fix: formatting, add docs about local mibs path

Author: omrozowicz-splunk

docs/dockercompose/6-env-file-configuration.md

@@ -62,6 +62,8 @@ Inside the directory with the docker compose files, there is a `.env`. Variables
 | `SPLUNK_METRIC_NAME_HYPHEN_TO_UNDERSCORE` | Replaces hyphens with underscores in generated metric names to ensure compatibility with Splunk's metric schema                       |
 | `IGNORE_EMPTY_VARBINDS`                   | Details can be found in [empty snmp response message issue](../troubleshooting/polling-issues.md#empty-snmp-response-message-problem) |
 | `SPLUNK_LOG_INDEX`                        | Event index in Splunk where logs from docker containers would be sent                                                                 |
+| `PATH_TO_LOCAL_MIBS`                      | Path to the directory containing [local MIB files](../mib-request.md#configuring-path-to-local-mibs-for-docker-compose-installation). |
+
 ## Workers
 
 ### General
@@ -127,6 +129,7 @@ Inside the directory with the docker compose files, there is a `.env`. Variables
 | `SNMP_V3_SECURITY_ENGINE_ID` | SNMPv3 TRAPs require the configuration SNMP Engine ID of the TRAP sending application for the USM users table of the TRAP receiving application for each USM user, for example: SNMP_V3_SECURITY_ENGINE_ID=80003a8c04,aab123456 |
 | `INCLUDE_SECURITY_CONTEXT_ID` | Controls whether to add the context_engine_id field to v3 trap events                                                                                                                                                           |
 | `TRAPS_PORT`                 | External port exposed for traps server                                                                                                                                                                                          |
+
 ## Scheduler
 
 | Variable              | Description                                                                                       |