add eslint

.eslintrc.json

@@ -0,0 +1,3 @@
+{
+    "extends": "airbnb"
+}

package.json

@@ -4,7 +4,8 @@
   "description": "",
   "scripts": {
     "solidity-coverage": "./node_modules/.bin/solidity-coverage",
-    "test": "embark test"
+    "test": "embark test",
+    "lint": "eslint"
   },
   "repository": {
     "type": "git",
@@ -21,5 +22,12 @@
     "react-blockies": "^1.3.0",
     "react-bootstrap": "^0.32.1",
     "react-dom": "^16.3.2"
+  },
+  "devDependencies": {
+    "eslint": "^4.19.1",
+    "eslint-config-airbnb": "^16.1.0",
+    "eslint-plugin-import": "^2.12.0",
+    "eslint-plugin-jsx-a11y": "^6.0.3",
+    "eslint-plugin-react": "^7.8.2"
   }
 }