Categorize SDKs (#1251)

docs/tools/sdks/library.mdx

@@ -3,9 +3,13 @@ title: "SDK Library"
 sidebar_position: 10
 ---
 
-Interact with the Stellar network using the SDK in your preferred language. The JavaScript, Go, and Rust SDKs are maintained by SDF and the rest are maintained by dedicated community developers. All SDKs are open-source; file a GitHub issue or pull request in the specific SDK repository if you have questions or suggestions.
+The list of SDKs is separated into two categories: Contract SDKs (used to build and interact with smart contracts on the network) and Client & XDR SDKs (used by applications to interact with the network).
 
-Each SDK has its own source code and documentation. Learn how to use a specific SDK by referring to the documentation- most docs offer practical examples that demonstrate how to construct and submit transactions and interact with Horizon endpoints.
+The JavaScript, Go, and Rust SDKs are maintained by SDF and the rest are maintained by dedicated community developers. All SDKs are open-source; file a GitHub issue or pull request in the specific SDK repository if you have questions or suggestions.
+
+Each SDK has its own source code and documentation. Learn how to use a specific SDK by referring to the documentation.
+
+## Contract SDKs
 
 ### Soroban Rust SDK
 
@@ -35,6 +39,8 @@ The `as-soroban-sdk` is an open source SDK that supports writing programs for th
 
 The AssemblyScript Soroban SDK is maintained by dedicated community developer, Soneso. Report issues and share feedback [here](https://github.com/Soneso/as-soroban-sdk/issues/new).
 
+## Client & XDR SDKs
+
 ### JavaScript SDK
 
 [JavaScript SDK](https://github.com/stellar/js-stellar-sdk) | [Docs](https://stellar.github.io/js-stellar-sdk/) | [NPM](https://www.npmjs.com/package/@stellar/stellar-sdk)