Remove trailing whitespace, add support for eslint

docs/.eslintrc

@@ -0,0 +1,21 @@
+{
+    "env": {
+      "browser": true,
+      "node": true
+    },
+    "parser": "babel-eslint",
+    "rules": {
+      "strict": 0,
+      "no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
+      "no-trailing-spaces": ["error", { "skipBlankLines": true }]
+    },
+    "settings": {
+      "react": {
+        "version": "detect", // React version. "detect" automatically picks the version you have installed.
+      }
+    },
+    "extends": [
+      "eslint:recommended",
+      "plugin:react/recommended"
+    ]
+  }

docs/README.md

@@ -22,4 +22,4 @@ This command starts a local development server and open up a browser window. Mos
 $ yarn build
 ```
 
-This command generates static content into the `build` directory and can be served using any static contents hosting service.
+This command generates static content into the `build` directory and can be served using any static contents hosting service.

docs/package.json

@@ -16,8 +16,10 @@
     "@docusaurus/core": "^2.0.0-alpha.58",
     "@docusaurus/preset-classic": "^2.0.0-alpha.58",
     "@docusaurus/theme-search-algolia": "^2.0.0-alpha.32",
+    "babel-eslint": "^10.1.0",
     "clsx": "^1.1.1",
-    "eslint": "^7.3.0",
+    "eslint": "^7.3.1",
+    "eslint-plugin-react": "^7.20.0",
     "prettier": "^2.0.5",
     "react": "^16.8.4",
     "react-dom": "^16.8.4"

docs/src/css/custom.css

@@ -60,7 +60,7 @@ main {
   transform: translate(0px, -5px);
 }
 
-.footer--dark { 
+.footer--dark {
   background-color: #232323 !important;
 }