set doctoc and prettier for md files

Author: vinaypuppal

Diff for: .prettierignore

@@ -0,0 +1 @@
+out/

Diff for: .prettierrc

@@ -3,5 +3,6 @@
   "semi": true,
   "trailingComma": "es5",
   "singleQuote": true,
-  "jsxBracketSameLine": true
+  "jsxBracketSameLine": true,
+  "proseWrap": false
 }

Diff for: package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "test": "xo && jest",
-    "lint": "prettier 'utils/**/*.js' 'components/**/*.js' 'pages/**/*.js' 'lib/**/*.js' 'hocs/**/*.js' '*.js' --write && xo",
+    "lint":
+      "prettier 'utils/**/*.js' 'components/**/*.js' 'pages/**/*.js' 'lib/**/*.js' 'hocs/**/*.js' '*.js' --write && xo",
     "precommit": "lint-staged",
     "analyze": "cross-env ANALYZE=1 next build",
     "dev": "cross-env NODE_ENV=development node server.js",
@@ -15,32 +16,19 @@
   },
   "xo": {
     "parser": "babel-eslint",
-    "extends": [
-      "prettier",
-      "prettier/react",
-      "plugin:react/recommended"
-    ],
-    "env": [
-      "browser",
-      "node"
-    ],
+    "extends": ["prettier", "prettier/react", "plugin:react/recommended"],
+    "env": ["browser", "node"],
     "rules": {
       "linebreak-style": 0,
       "react/display-name": 0,
       "react/prop-types": 0
     },
     "space:": 2,
-    "ignores": [
-      "next.config.js"
-    ],
+    "ignores": ["next.config.js"],
     "overrides": [
       {
         "files": "**/__tests__/*.test.js",
-        "globals": [
-          "describe",
-          "it",
-          "expect"
-        ]
+        "globals": ["describe", "it", "expect"]
       }
     ]
   },
@@ -50,7 +38,9 @@
       "xo",
       "jest --findRelatedTests",
       "git add"
-    ]
+    ],
+    "*.md": ["prettier", "git add"],
+    ".github/CONTRIBUTING.md": ["doctoc", "git add"]
   },
   "dependencies": {
     "babel-plugin-emotion": "^8.0.10",
@@ -81,6 +71,7 @@
     "babel-eslint": "^8.0.1",
     "babel-plugin-lodash": "^3.2.11",
     "cross-env": "^5.0.2",
+    "doctoc": "^1.3.0",
     "enzyme": "^3.1.1",
     "enzyme-adapter-react-16": "^1.0.4",
     "enzyme-to-json": "^3.2.2",