fix docs with correct instructions to create a silence URL (#52062)

docs/sources/alerting/silences/linking-to-silence-form.md

@@ -14,8 +14,8 @@ weight: 451
 
 # Create a URL to link to a silence form
 
-When linking to a silence form, provide the default matching labels and comment via `matchers` and `comment` query parameters. The `matchers` parameter requires one more matching labels of the type `[label][operator][value]` joined by a comma while the `operator` parameter can be one of the following: `=` (equals, not regex), `!=` (not equals, not regex), `=~` (equals, regex), `!~` (not equals, regex).
-
-For example, to link to silence form with matching labels `severity=critical` & `cluster!~europe-.*` and comment `Silence critical EU alerts`, create a URL `https://mygrafana/alerting/silence/new?matchers=severity%3Dcritical%2Ccluster!~europe-*&comment=Silence%20critical%20EU%20alert`.
+When linking to a silence form, provide the default matching labels and comment via `matcher` and `comment` query parameters. The `matcher` parameter should be in the following format `[label][operator][value]` where the `operator` parameter can be one of the following: `=` (equals, not regex), `!=` (not equals, not regex), `=~` (equals, regex), `!~` (not equals, regex).
+The URL can contain many query parameters with the key `matcher`.
+For example, to link to silence form with matching labels `severity=critical` & `cluster!~europe-.*` and comment `Silence critical EU alerts`, create a URL `https://mygrafana/alerting/silence/new?matcher=severity%3Dcritical&matcher=cluster!~europe-*&comment=Silence%20critical%20EU%20alert`.
 
 To link to a new silence page for an [external Alertmanager]({{< relref "../../datasources/alertmanager/" >}}), add a `alertmanager` query parameter with the Alertmanager data source name.