Add registry refresh config to splinterd man page
Document the `--registry-auto-refresh` and `--registry-forced-refresh`
CLI options in the splinterd man page.
@@ -153,6 +153,14 @@ OPTIONS
`--registries REGISTRY-FILE` `[,...]`
: Specifies one or more read-only Splinter registry files.
+`--registry-auto-refresh SECONDS`
+: Specifies how often, in seconds, to fetch remote node registry changes in the
+ background. (Default: 600 seconds.) Use 0 to turn off automatic refreshes.
+
+`--registry-forced-refresh SECONDS`
+: Specifies how often, in seconds, to fetch remote node registry changes on
+ read. (Default: 10 seconds.) Use 0 to turn off forced refreshes.
+
`--service-endpoint SERVICE-ENDPOINT`
: Specifies the endpoint for service-to-daemon communication, using the format
`tcp://ip:port`. (Default: `127.0.0.1:8043`.)
