docs: improve code blocks (#1231)

Author: Jinjiang

docs/config.md

@@ -25,12 +25,12 @@ module.exports = {
   // https://vuejs.org/v2/guide/installation.html#Runtime-Compiler-vs-Runtime-only
   compiler: false,
 
-  // babel-loader skips node_module deps by default.
+  // babel-loader skips `node_modules` deps by default.
   // explicitly transpile a dependency with this option.
   transpileDependencies: [/* string or regex */],
 
   // whether to preserve whitespaces between elements during template
-  // compilation. Defaults to false for smaller compiled code size and
+  // compilation. Defaults to `false` for smaller compiled code size and
   // performance.
   preserveWhitepsace: false,
 

docs/webpack.md

@@ -110,7 +110,7 @@ module.exports = {
 
 You will need to familiarize yourself with [webpack-chain's API](https://github.com/mozilla-neutrino/webpack-chain#getting-started) and [read some source code](https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-service/lib/config) in order to understand how to leverage the full power of this option, but it gives you a more expressive and safer way to modify the webpack config than directly mutation values.
 
-For example, say you want to change the default location of index.html from */Users/username/proj/public/index.html* to */Users/username/proj/app/templates/index.html*.  By referencing [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin#options) you can see a list of options you can pass in. To change our template path we can pass in a new template path with the following config:
+For example, say you want to change the default location of `index.html` from `/Users/username/proj/public/index.html` to `/Users/username/proj/app/templates/index.html`. By referencing [html-webpack-plugin](https://github.com/jantimon/html-webpack-plugin#options) you can see a list of options you can pass in. To change our template path we can pass in a new template path with the following config:
 
 ``` js
 // vue.config.js
@@ -126,7 +126,7 @@ module.exports = {
 }
 ```
 
-You can confirm that this change has taken place by examining the vue webpack config with the **vue inspect** utility, which we will discuss next.
+You can confirm that this change has taken place by examining the vue webpack config with the `vue inspect` utility, which we will discuss next.
 
 ### Inspecting the Project's Webpack Config