feat: added wrapped-token.md (#721)

Author: impelcrypto

docs/build/EVM/wrapped-token.md

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+---
+sidebar_position: 11
+---
+
+# Wrapped Tokens
+
+This documentation provides details about the WASTR and WSBY tokens deployed on the Astar and Shibuya networks respectively.
+
+---
+
+## WASTR (Wrapped ASTR)
+
+**WASTR** is a wrapped version of the native ASTR token on the Astar network. Wrapping ASTR enables its use in various dApps and smart contracts while maintaining compatibility with ERC20 standards.
+
+- **Contract Address**: [0x37795FdD8C165CaB4D6c05771D564d80439CD093](https://astar.blockscout.com/address/0x37795FdD8C165CaB4D6c05771D564d80439CD093?tab=txs)
+
+---
+
+## WSBY (Wrapped SBY)
+
+**WSBY** is a wrapped version of the native SBY token on the Shibuya testnet. Wrapping SBY enables its use in various dApps and smart contracts while maintaining compatibility with ERC20 standards.
+
+- **Contract Address**: [0xbd5F3751856E11f3e80dBdA567Ef91Eb7e874791](https://shibuya.blockscout.com/address/0xbd5F3751856E11f3e80dBdA567Ef91Eb7e874791?tab=contract)
+
+---
+