Update README.md

Author: anastasiarods

packages/transaction-decoder/README.md

@@ -9,3 +9,8 @@ $ npm i @3loop/transaction-decoder
 ```
 
 [Head to the documentation](https://loop-decoder.3loop.io/) for an up to date documentation on the Transaciton decoder.
+
+## Links
+
+- [docs](https://github.com/3loop/loop-decoder/tree/main/apps/docs) - Documentation website
+- [web](https://github.com/3loop/loop-decoder/tree/main/apps/docs) - Interactive playground