added value with jzfs data hub and data space

Author: taoshengshi

Diff for: README.md

@@ -13,6 +13,22 @@ JZFS is still in the early development stages and is considered **incubating**.
 
 The immediate next steps for the project are to fill obvious gaps, such as implementing error handling, removing panics throughout the codebase, supporting additional data types, and writing documentation. After that, development will be based on feedback and contributions.
 
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+### Added value
+Our central use case is the DataHub, which essentially consists of a metadata catalog and a knowledge graph.
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+This enables us to create transparency across internal and external data. It forms the basis for a new way of practicing data exchange and contract design for distributed data sources. It is crucial that data exchange works both within the company and in individually controllable data networks (data circles). Our long-term goal is to build data ecosystems that enable new innovations.
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+JZFS data space consists of so-called “DataHubs,” which are virtual data nodes for sharing data and building data networks. 
+A single DataHub manages various data connections and can join together with other hubs to form a network through targeted synchronization. 
+Based on data contracts mapped in the network, data can be released to other participants, enabling efficient data exchange.
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+![](./docs/jzfs-space.png)
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+JZFS offers technology for exchanging data in data circles. The added value is clear: simple, transparent data management combined with intuitive linking and sharing of data in decentralized networks – data circles.
+This enables secure, trustworthy data exchange across organizational boundaries.
+
 ### License
 
 This project is licensed under the [MIT License].