[PLINT-384] Update documentation for Teleport Integration (#17506)

* update missing metadata.csv descriptions

* update README

* remove extra spaces

* surround all descripionts with double quotes

Author: NouemanKHAL

teleport/README.md

@@ -45,14 +45,12 @@ The Teleport integration does not include any events.
 
 The Teleport integration does not include any service checks.
 
-See [service_checks.json][8] for a list of service checks provided by this integration.
-
 ## Troubleshooting
 
 Need help? Contact [Datadog support][9].
 
 
-[1]: **LINK_TO_INTEGRATION_SITE**
+[1]: https://docs.datadoghq.com/integrations/teleport
 [2]: https://app.datadoghq.com/account/settings/agent/latest
 [3]: https://docs.datadoghq.com/agent/kubernetes/integrations/
 [4]: https://github.com/DataDog/integrations-core/blob/master/teleport/datadog_checks/teleport/data/conf.yaml.example