Add Knocki documentation (#33256)

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>

source/_integrations/knocki.markdown

@@ -0,0 +1,26 @@
+---
+title: Knocki
+description: Instructions on how to setup Knocki devices in Home Assistant.
+ha_category:
+  - Event
+ha_config_flow: true
+ha_release: 2024.7
+ha_iot_class: Cloud Push
+ha_codeowners:
+  - '@jgatto'
+  - '@joostlek'
+ha_domain: knocki
+ha_platforms:
+  - event
+ha_integration_type: integration
+---
+
+The **Knocki** {% term integration %} can receive events for the triggers set up from your [Knocki devices](https://knocki.com/).
+
+## Prerequisites
+
+To use the Knocki integration, you need a Knocki account.
+
+Once you set a trigger in the app, it will show up in Home Assistant to use.
+
+{% include integrations/config_flow.md %}