[DOCS] Adds redirect to known plugins page (#84001) (#84547)

Author: KOTungseth

docs/redirects.asciidoc

@@ -184,6 +184,11 @@ This content has moved. See <<discover, **Discover**>>.
 
 This content has moved. See <<discover, **Discover**>>.
 
+[role="exclude",id="known-plugins"]
+== Known plugins
+
+This content has moved. See <<known-kibana-plugins>>.
+
 [role="exclude",id="url-drilldown"]
 == URL drilldown
 
@@ -203,4 +208,4 @@ This page has moved. Refer to <<url_templating-language>>.
 [[variables]]
 === Variables
 
-This page has moved. Refer to <<url-template-variables>>.
+This page has moved. Refer to <<url-template-variables>>.

docs/user/plugins.asciidoc

@@ -14,7 +14,7 @@ Plugin developers must release a new version of their plugin for each new {kib}
 ==============================================
 
 [float]
-[[known-plugins]]
+[[known-kibana-plugins]]
 == Known plugins
 
 The known plugins were tested for {kib} *5.x*, so we are unable to guarantee compatibility with your version of {kib}. The {kib} installer rejects any plugins that haven't been published for your specific version of {kib}.