docs: tweaks [ci skip]

README.md

@@ -71,9 +71,7 @@ Write the name to [babelrc](https://babeljs.io/docs/usage/babelrc/). It works wi
 ```json
 {
   "presets": ["@babel/env"],
-  "plugins": [
-    "add-module-exports"
-  ]
+  "plugins": ["add-module-exports"]
 }
 ```
 
@@ -84,10 +82,8 @@ this plugin makes changes only when exists `exports.default` (in other words, us
 
 ```json
 {
-  "presets": [["@babel/env", {"modules": false}]],
-  "plugins": [
-    "add-module-exports"
-  ]
+  "presets": [["@babel/env", { "modules": false }]],
+  "plugins": ["add-module-exports"]
 }
 ```
 
@@ -102,13 +98,13 @@ Doesn't support `amd`, `systemjs` modules(don't use. there are no plans to suppo
 
 ### with Webpack
 
-Likewise, webpack doesn't perform commonjs transformation for [codesplitting](https://webpack.js.org/guides/code-splitting/).  Need to set commonjs conversion.
+Likewise, webpack doesn't perform commonjs transformation for [codesplitting](https://webpack.js.org/guides/code-splitting/). Need to set commonjs conversion.
 
-```js
-module.exports = {
-  presets: [["@babel/env", { modules: "commonjs" }]],
-  plugins: ["add-module-exports"]
-};
+```json
+{
+  "presets": [["@babel/env", { "modules": "commonjs" }]],
+  "plugins": ["add-module-exports"]
+}
 ```
 
 Options
@@ -122,13 +118,18 @@ If you're exporting an object and wish to maintain compatibility with code using
 {
   "presets": ["env"],
   "plugins": [
-    ["add-module-exports", {
-      "addDefaultProperty": true
-    }]
+    [
+      "add-module-exports",
+      {
+        "addDefaultProperty": true
+      }
+    ]
   ]
 }
 ```
+
 This will cause a second line of code to be added which aliases the `default` name to the exported object like so:
+
 ```js
 module.exports = exports['default'];
 module.exports.default = exports['default']