plugin/reload: Fix "durations" documentation link
* plugin/reload/README.md: Fix the syntax of the link to the Go
documentation for duration values.
@@ -40,7 +40,7 @@ reload [INTERVAL] [JITTER]
The plugin will check for changes every **INTERVAL**, subject to +/- the **JITTER** duration.
-* **INTERVAL** and **JITTER** are Golang (durations)[[https://golang.org/pkg/time/#ParseDuration](https://golang.org/pkg/time/#ParseDuration)].
+* **INTERVAL** and **JITTER** are Golang [durations](https://golang.org/pkg/time/#ParseDuration).
The default **INTERVAL** is 30s, default **JITTER** is 15s, the minimal value for **INTERVAL**
is 2s, and for **JITTER** it is 1s. If **JITTER** is more than half of **INTERVAL**, it will be
set to half of **INTERVAL**
