docs: Update Providers.Credential Example Block [skip release] (#1225)

codyogden · balazsorban44 · commit cdc1ac52b2f2 · 2021-02-01T10:01:10.000+01:00
Closing curly bracket where it should have been a square bracket.
diff --git a/www/docs/configuration/providers.md b/www/docs/configuration/providers.md
@@ -199,7 +199,7 @@ providers: [
       }
     }
   })
-}
+]
 ...
 ```
 
