Chore eslint

Author: shuntatakemoto

.eslintrc.js

@@ -0,0 +1,14 @@
+module.exports={
+    extends:"eslint:recommended",
+    env:{
+        commonjs:true,
+        es2021:true,
+        node:true
+    },
+    parserOptions:{
+        ecmaVersion:12
+    },
+    rules:{
+        quotes:["error","double"]
+    }
+}