fix some bugs

docs/Polygon-Whitelist-NFT_[ChainIDE]/en/section-0/lesson-2_Setup MetaMask.md

@@ -31,6 +31,4 @@ Click "Connect wallet" on the right side of the screen, select "Injected Web3 Pr
 #### Claim testnet tokens
 Once Mumbai is added to MetaMask, click on [Polygon Faucet](https://faucet.polygon.technology/) to receive testnet tokens. On the faucet page, we choose Mumbai as the network and MATIC as the token and then paste your MetaMask wallet address. Next, click submit, and the faucet will send you some test MATIC within a minute.
 
-<img src="/public/images/Polygon-Whitelist-NFT_[ChainIDE]/section-0/0_1_1.pngPolygon_PR_get_tokens.png" width="100%" height="100%" />
-
 ![image-2023011412043342](/public/images/Polygon-Whitelist-NFT_[ChainIDE]/section-0/0_2_5.png)

docs/Polygon-Whitelist-NFT_[ChainIDE]/en/section-2/lesson-1_NFT Introduction.md

@@ -20,5 +20,5 @@ There are now many different NFT protocol standards on ETH, and let me introduce
 
 2. [ERC-1155](https://eips.ethereum.org/EIPS/eip-1155) is a new NFT standard, released by Enjin in 2018. ERC-1155 represents "Fungible/Non-Fungible Tokens," merging both fungible and non-fungible tokens into one standard. This standard allows the creation of a single smart contract to manage multiple types of tokens, which can be either fungible or non-fungible. ERC-1155 tokens can be used to represent digital items, such as weapons, equipment, ornaments in games, and so on.
 
-3. Subsequent NFT protocols such as [ERC-3525](https://eips.ethereum.org/EIPS/eip-3525), [ERC-4907](https://eips.ethereum.org/EIPS/eip-3525) were also developed from the above two NFT standards.
+3. Subsequent NFT protocols such as [ERC-3525](https://eips.ethereum.org/EIPS/eip-3525), [ERC-4907](https://eips.ethereum.org/EIPS/eip-4907) were also developed from the above two NFT standards.