Add PrusaLink (#23941)

* Add PrusaLink

* Update source/_integrations/prusalink.markdown

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

source/_integrations/octoprint.markdown

@@ -2,6 +2,7 @@
 title: OctoPrint
 description: Integration between OctoPrint and Home Assistant.
 ha_category:
+  - 3D Printing
   - Binary Sensor
   - Button
   - Sensor

source/_integrations/prusalink.markdown

@@ -0,0 +1,19 @@
+---
+title: PrusaLink
+description: Instructions on monitoring Prusa 3D printers using PrusaLink.
+ha_category:
+  - 3D Printing
+ha_iot_class: Local Polling
+ha_release: '2022.9'
+ha_config_flow: true
+ha_codeowners:
+  - '@balloob'
+ha_domain: prusalink
+ha_integration_type: integration
+---
+
+The PrusaLink integration allows you to monitor your [Prusa 3D printer](https://www.prusa3d.com) and its progress with your Home Assistant installation.
+
+{% include integrations/config_flow.md %}
+
+This integration requires PrusaLink v2. If you have the Prusa MINI, you need to run firmware 4.4.0 or later.