added linters

.eslintrc.json

@@ -0,0 +1,25 @@
+{
+  "env": {
+    "browser": true,
+    "es6": true,
+    "jest": true
+  },
+  "parser": "babel-eslint",
+  "parserOptions": {
+    "ecmaVersion": 2018,
+    "sourceType": "module"
+  },
+  "extends": ["airbnb-base"],
+  "rules": {
+    "no-shadow": "off",
+    "no-param-reassign": "off",
+    "eol-last": "off",
+    "import/extensions": [ 1, {
+      "js": "always", "json": "always"
+    }]
+  },
+  "ignorePatterns": [
+    "dist/",
+    "build/"
+  ]
+}

.hintrc

@@ -0,0 +1,18 @@
+{
+  "connector": {
+    "name": "local",
+    "options": {
+      "pattern": ["**", "!.git/**", "!node_modules/**"]
+    }
+  },
+  "extends": ["development"],
+  "formatters": ["stylish"],
+  "hints": [
+    "button-type",
+    "disown-opener",
+    "html-checker",
+    "meta-charset-utf-8",
+    "meta-viewport",
+    "no-inline-styles:error"
+  ]
+}

.stylelintrc.json

@@ -0,0 +1,20 @@
+{
+  "extends": ["stylelint-config-standard"],
+  "plugins": ["stylelint-scss", "stylelint-csstree-validator"],
+  "rules": {
+    "at-rule-no-unknown": [
+      true,
+      {
+        "ignoreAtRules": ["tailwind", "apply", "variants", "responsive", "screen"]
+      }
+    ],
+    "scss/at-rule-no-unknown":  [
+      true,
+      {
+        "ignoreAtRules": ["tailwind", "apply", "variants", "responsive", "screen"]
+      }
+    ],
+    "csstree/validator": true
+  },
+  "ignoreFiles": ["build/**", "dist/**", "**/reset*.css", "**/bootstrap*.css", "**/*.js", "**/*.jsx"]
+}