Add YFFS logo and info (#4258)

blockchains/ethereum/assets/0x90D702f071d2af33032943137AD0aB4280705817/info.json

@@ -0,0 +1,25 @@
+{
+  "name": "yffs.finance",
+  "website": "https://yffs.finance/",
+  "source_code": "https://github.com/yffsfinance",
+  "short_description": "YFFS.Finance is a platform that unites DeFi applications, making it easy for users to have more and more profit from their crypto assets.",
+  "description": "YFFS adopts a modular design. Modularity refers to the combination of various elements of the product to form a subsystem with specific functions. We combine these subsystem as a universal module with other modules to create a new system with multiple functions and performance.",
+  "socials": [
+    {
+      "name": "Twitter",
+      "url": "https://twitter.com/yffsfinance",
+      "handle": "yffsfinance"
+    },
+    {
+      "name": "Telegram",
+      "url": "https://t.me/yffsfinance",
+      "handle": "yffsfinance"
+    },
+    {
+      "name": "Medium",
+      "url": "https://medium.com/@yffs.finance",
+      "handle": "yffs.finance"
+    }
+  ],
+  "explorer": "https://etherscan.io/token/0x90D702f071d2af33032943137AD0aB4280705817"
+}