Add docs for Tractive (#17939)

* Add docs for Tractive

* Remove quality scale

* Update source/_integrations/tractive.markdown

Co-authored-by: Franck Nijhof <frenck@frenck.nl>

source/_integrations/tractive.markdown

@@ -0,0 +1,28 @@
+---
+title: Tractive
+description: Instructions on how to integrate Tractive within Home Assistant.
+ha_category:
+  - Presence Detection
+ha_release: 2021.9
+ha_iot_class: Cloud push
+ha_config_flow: true
+ha_codeowners:
+  - "@zhulik"
+ha_domain: tractive
+---
+
+[Tractive](https://tractive.com/en/) is an Austrian company that develops real-time location trackers for pets and other animals using GPS and GSM technology.
+
+The Tractive integration allows you to monitor locations of your pets from within Home Assistant and set up automations based on the information.
+
+## Prerequisites
+
+To use the integration you must be a premium tractive client.
+
+{% include integrations/config_flow.md %}
+
+## Integration Entities
+
+The Tractive integration adds one device tracker per registered pet:
+
+![Tractive device tracker](/images/integrations/tractive/device_tracker.png)