Add lamarzocco documentation (#29436)

* Create lamarzocco.markdown

* add missing link

* Update source/_integrations/lamarzocco.markdown

Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>

* Update lamarzocco.markdown

* Update lamarzocco.markdown

* Update lamarzocco.markdown

* Update lamarzocco.markdown

* add sensors

* Update source/_integrations/lamarzocco.markdown

Co-authored-by: Robert Resch <robert@resch.dev>

* Caught a typo

---------

Co-authored-by: c0ffeeca7 <38767475+c0ffeeca7@users.noreply.github.com>
Co-authored-by: Robert Resch <robert@resch.dev>

source/_integrations/lamarzocco.markdown

@@ -0,0 +1,46 @@
+---
+title: La Marzocco
+description: Instructions on how to integrate your La Marzocco coffee machine with Home Assistant.
+ha_release: 2024.2
+ha_category:
+  - Switch
+ha_iot_class: Cloud Polling
+ha_config_flow: true
+ha_domain: lamarzocco
+ha_platforms:
+  - switch
+ha_codeowners:
+  - '@zweckj'
+ha_integration_type: device
+---
+
+This integration interacts with [La Marzocco coffee machines](https://lamarzocco.com/it/en/) through calls to the LaMarzocco cloud API and (optionally) local API calls, which include a WebSocket connection for (near) real-time updates. 
+
+To be able to configure your machine in Home Assistant, your machine needs to be added to your account using the official La Marzocco app first. Currently, only login with username & password is supported. If you are currently using a social login, you need to create a new LaMarzocco account and transfer your machine to it to be able to use this integration.
+
+
+{% include integrations/config_flow.md %}
+
+{% configuration_basic %}
+Username:
+  description: "Your username you use to log into the La Marzocco app."
+  required: true
+  type: string
+Password:
+  description: "Password you use to log into the La Marzocco app."
+  required: true
+  type: string
+Host:
+  description: "IP address of your machine in your local network. If not set, no local connections will be used."
+  required: false
+  type: boolean
+{% endconfiguration_basic %}
+
+## Switches
+
+| Switch name | Description | Available for machines |
+|-------------|-------------| ---------------------- |
+| Main        | Allows to turn machines on-/off | all |
+| Auto on/off | Allows to enable/disable the auto on/off schedule | all |
+| Steam boiler | Allows to enable/disable the steam boiler | all |
+