plugin_extensions.md: note code insight features

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Yann Cébron 2019-12-06 16:41:27 +01:00
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@ -20,7 +20,7 @@ different parts of the IDE behavior.
## Declaring Extensions
> **TIP** Auto-completion is available for all these steps.
> **TIP** Auto-completion, Quick Documentation and other code insight features are available on extension point tags and attributes.
1. Add an `<extensions>` element to your plugin.xml if it's not yet present there. Set the `defaultExtensionNs` attribute to one of the following values:
* `com.intellij`, if your plugin extends the IntelliJ Platform core functionality.