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yaml.markdown: Link configuration.yaml at first usage (#29280)

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@ -5,7 +5,7 @@ description: "Details about YAML to configure Home Assistant."
Home Assistant uses the [YAML](https://yaml.org/) syntax for configuration. YAML might take a while to get used to but is really powerful in allowing you to express complex configurations.
While more and more integrations are configured through the UI, for some, you will add code in your `configuration.yaml` file to specify its settings.
While more and more integrations are configured through the UI, for some, you will add code in your [`configuration.yaml`](/docs/configuration/) file to specify its settings.
The following example entry assumes that you would like to set up the [notify integration](/integrations/notify) with the [pushbullet platform](/integrations/pushbullet).
@ -19,7 +19,7 @@ notify:
- An **integration** provides the core logic for some functionality (like `notify` provides sending notifications).
- A **platform** makes the connection to a specific software or hardware platform (like `pushbullet` works with the service from pushbullet.com).
The basics of YAML syntax are block collections and mappings containing key-value pairs. Each item in a collection starts with a `-` while mappings have the format `key: value`. This is somewhat similar to a Hash table or more specifically a dictionary in Python. These can be nested as well. **Beware that if you specify duplicate keys, the last value for a key is used**.
The basics of YAML syntax are block collections and mappings containing key-value pairs. Each item in a collection starts with a `-` while mappings have the format `key: value`. This is somewhat similar to a Hash table or more specifically a dictionary in Python. These can be nested as well. **Beware that if you specify duplicate keys, the last value for a key is used**.
Note that indentation is an important part of specifying relationships using YAML. Things that are indented are nested "inside" things that are one level higher. So in the above example, `platform: pushbullet` is a property of (nested inside) the `notify` integration.