add collections and memory docs

docs/knowledge-base/02-collections.mdx

@@ -34,4 +34,26 @@ To create a new collection, follow these steps:
 
 <Video type="video/webm" src="/mdx-assets/knowledge-base/collections/create_collection_07.webm"/>
 
+---
+
+## Managing Collections
+
+You can manage your collections within the knowledge base. There are several sections available after creating a collection:
+
+#### Content:
+
+All your collection memories are listed here. You can also add new files here or search the collection.
+
+#### Overview:
+
+This section provides a cost overview and usage for your collection.
+
+#### Interface:
+
+Description of the collection API endpoints details are available here.
+
+#### Settings:
+
+You can see the configuration of your collection here. Only the secret value is possible to change.
+
 ---

docs/knowledge-base/03-memories.mdx

@@ -0,0 +1,16 @@
+---
+title: Memories
+---
+
+import { Video } from "/src/components/Video";
+
+# Memories
+
+## Adding a Memory
+
+To add a new memory, click the `Add new memory file` button and upload the file.
+It may take a while to process the file depending on its size. Do not refresh or close the app during the upload. 
+Once the file is processed, the memory will be added to the collection.
+
+
+<Video type="video/webm" src="/mdx-assets/knowledge-base/memories/create_memory_07.webm"/>