docs: add CLI usage and integrate generation in release

www/docs/cli/filebrowser-rules-ls.md

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+# filebrowser rules ls
+
+List global rules or user specific rules
+
+## Synopsis
+
+List global rules or user specific rules.
+
+```
+filebrowser rules ls [flags]
+```
+
+## Options
+
+```
+  -h, --help   help for ls
+```
+
+## Options inherited from parent commands
+
+```
+  -c, --config string     config file path
+  -d, --database string   database path (default "./filebrowser.db")
+  -i, --id uint           id of user to which the rules apply
+  -u, --username string   username of user to which the rules apply
+```
+
+## See Also
+
+* [filebrowser rules](filebrowser-rules.md)	 - Rules management utility
+