docs/victorialogs: follow-up for ecc5cb4

- Make the changelog entry more user-readable.
- Add the description for the -storageNode.usernameFile command-line flag
  to the list of command-line flags at https://docs.victoriametrics.com/victorialogs/#list-of-command-line-flags

Updates #459
Updates #685

Author: valyala

docs/victorialogs/CHANGELOG.md

@@ -22,7 +22,7 @@ according to [these docs](https://docs.victoriametrics.com/victorialogs/quicksta
 * FEATURE: proxy VMAlert requests at `/select/vmalert` path, when `-vmalert.proxyURL` flag is set. See [#90](https://github.com/VictoriaMetrics/VictoriaLogs/issues/90).
 * FEATURE: [web UI](https://docs.victoriametrics.com/victorialogs/querying/#web-ui): control tenant selector state on VMUI depending on headers that are passed to VictoriaLogs. With `AccountID` and `ProjectID` headers set VMUI shows tenant information as a static value, with `VL-Disable-Tenant-Controls` header set to `true` tenant information is not shown in VMUI. See [#656](https://github.com/VictoriaMetrics/VictoriaLogs/issues/656).
 * FEATURE: [web UI](https://docs.victoriametrics.com/victorialogs/querying/#web-ui): introduce vmui's `Alerting` tab. The new `Alerting` tab displays vmalert groups, rules and notifiers. See [#90](https://github.com/VictoriaMetrics/VictoriaLogs/issues/90).
-* FEATURE: [vlselect](https://docs.victoriametrics.com/victorialogs/cluster/): introduce `-storageNode.usernameFile` to allow dynamically reload username. See [#459](https://github.com/VictoriaMetrics/VictoriaLogs/issues/459).
+* FEATURE: [vlselect](https://docs.victoriametrics.com/victorialogs/cluster/): add `-storageNode.usernameFile` command-line flag for dynamically reloading basic auth username for the corresponding `-storageNode` from the given file. See [#459](https://github.com/VictoriaMetrics/VictoriaLogs/issues/459).
 
 * BUGFIX: [LogsQL](https://docs.victoriametrics.com/victorialogs/logsql/): disallow incorrectly written filters such as `foo = bar`, `foo != bar`, `foo > bar`, etc. They must be written as `foo:=bar`, `foo:!=bar`, `foo:>bar`. See [#590](https://github.com/VictoriaMetrics/VictoriaLogs/issues/590).
 * BUGFIX: [LogsQL](https://docs.victoriametrics.com/victorialogs/logsql/): allow using unquoted [pipe names](https://docs.victoriametrics.com/victorialogs/logsql/#pipes) inside [LogsQL filters](https://docs.victoriametrics.com/victorialogs/logsql/#filters). For example, `fields.foo:bar` is allowed now, while previously it should be written as `"fields.foo":bar`. See [#669](https://github.com/VictoriaMetrics/VictoriaLogs/issues/669).

docs/victorialogs/README.md

@@ -767,6 +767,10 @@ Pass `-help` to VictoriaLogs in order to see the list of supported command-line
         Optional basic auth username to use for the corresponding -storageNode
         Supports an array of values separated by comma or specified via multiple flags.
         Value can contain comma inside single-quoted or double-quoted string, {}, [] and () braces.
+  -storageNode.usernameFile array
+        Optional path to basic auth username to use for the corresponding -storageNode. The file is re-read every second
+        Supports an array of values separated by comma or specified via multiple flags.
+        Value can contain comma inside single-quoted or double-quoted string, {}, [] and () braces.
   -syslog.compressMethod.tcp array
         Compression method for syslog messages received at the corresponding -syslog.listenAddr.tcp. Supported values: none, gzip, deflate. See https://docs.victoriametrics.com/victorialogs/data-ingestion/syslog/#compression
         Supports an array of values separated by comma or specified via multiple flags.