Update bridging index page

- Remove /img/home/
- Remove irrelevant info regarding zkEVM bridge

Author: hsutaiyu

docs/pos/how-to/bridging/ethereum-polygon/index.md

@@ -1,10 +1,10 @@
-Polygon brings you a trustless two-way transaction channel between Polygon PoS and Ethereum by introducing the cross-chain bridge. With this users can transfer tokens across Polygon PoS without incurring third-party risks and market liquidity limitations. "img/home/The PoS Bridge is available on both Mumbai Testnet as well as Polygon PoS Mainnet"img/home/. You can bridge assets to Polygon PoS using the [Polygon Wallet Suite](https://wallet.polygon.technology/polygon/bridge/deposit).
+Polygon brings you a trustless two-way transaction channel between Polygon PoS and Ethereum by introducing the cross-chain bridge. With this users can transfer tokens across Polygon PoS without incurring third-party risks and market liquidity limitations. 
 
-Polygon also offers the "img/home/zkEVM Bridge"img/home/ which can also be used via the [Polygon Wallet Suite](https://wallet.polygon.technology/polygon/bridge/deposit). This document is not about zkEVM Bridge.
+The PoS Bridge is available on both Mumbai Testnet as well as Polygon PoS Mainnet. You can access it and bridge assets over to Polygon PoS using the [Polygon Wallet Suite](https://wallet.polygon.technology/polygon/bridge/deposit).
 
-"img/home/Polygon PoS bridge provides a bridging mechanism that is near-instant, low-cost, and quite flexible"img/home/.
+Polygon PoS bridge provides a bridging mechanism that is near-instant, low-cost, and quite flexible.
 
-"img/home/There is no change to the circulating supply of your token when it crosses the bridge"img/home/;
+There is no change to the circulating supply of your token when it crosses the bridge;
 
 - Tokens that leave the Ethereum network are locked and the same number of tokens are minted on Polygon PoS as a pegged token (1:1).
 - To move the tokens back to the Ethereum network, tokens are burned on Polygon PoS network and unlocked on Ethereum network during the process.