Add Collections docs

docs/collections.md

@@ -0,0 +1,35 @@
+---
+layout: default
+title: Collections
+---
+
+Collections let you group related documents into searchable databases. Each collection has its own vector index so you can retrieve information based on semantic similarity.
+
+### Opening the collections panel
+
+- Click the **database icon** in the left toolbar or press **Key 4** to open the Collections view.
+- Existing collections appear in a list showing the number of indexed items and the embedding model used.
+- Use the **Create Collection** button to make a new one.
+
+### Creating a collection
+
+1. Enter a unique name.
+2. Choose an **embedding model** from the list. This model converts your documents into vectors for similarity search.
+3. Submit the form. The new collection appears in the list.
+
+### Indexing files
+
+- Drag and drop files onto a collection to add them. A progress bar shows indexing status and an ETA.
+- Supported formats include PDF, PowerPoint, Word, Excel, text, Markdown, HTML and images (with OCR extraction).
+- Any errors during indexing are reported once processing finishes.
+
+### Managing collections
+
+- Click a collection’s workflow name to assign an ingestion workflow. This workflow runs on new files as they are indexed.
+- Use the delete icon to remove a collection. Confirmation is required.
+
+### Using collections in chat
+
+When composing messages, click the **Collections** button in the chat toolbar to select which collections should be searched. The assistant will include results from the selected collections when responding.
+
+Collections are stored locally, giving you full control of your data while enabling powerful document retrieval.

docs/index.md

@@ -41,7 +41,7 @@ For a deeper look at how these pieces interact, read the
 Want more details? Check out our [Getting Started](getting-started.md) guide and the
 [Tips and Tricks](tips-and-tricks.md) page for shortcuts and workflow ideas.
 Explore the manual for deep dives into the [Workflow Editor](workflow-editor.md),
-[Asset Management](asset-management.md) and the [Desktop App](desktop-app.md).
+[Asset Management](asset-management.md), [Collections](collections.md) and the [Desktop App](desktop-app.md).
 
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