Fix ProvidersThrottleDuration doc

docs/toml.md

@@ -31,14 +31,14 @@
 #
 # logLevel = "ERROR"
 
-# Backends throttle duration: minimum duration between 2 events from providers
+# Backends throttle duration: minimum duration in seconds between 2 events from providers
 # before applying a new configuration. It avoids unnecessary reloads if multiples events
 # are sent in a short amount of time.
 #
 # Optional
-# Default: "2s"
+# Default: "2"
 #
-# ProvidersThrottleDuration = "5s"
+# ProvidersThrottleDuration = "5"
 
 # If non-zero, controls the maximum idle (keep-alive) to keep per-host.  If zero, DefaultMaxIdleConnsPerHost is used.
 # If you encounter 'too many open files' errors, you can either change this value, or change `ulimit` value.