fix extra spaces

Author: dghelm

src/content/docs/en/developers/verifying-smart-contracts.mdx

@@ -52,7 +52,7 @@ const config: HardhatUserConfig = {
         network: 'scrollSepolia',
         chainId: 534351,
         urls: {
-          apiURL: 'https://api-sepolia.scrollscan.com/api  ',
+          apiURL: 'https://api-sepolia.scrollscan.com/api',
           browserURL: 'https://sepolia.scrollscan.com/',
         },
       },