Improve documentation for plugin configuration

README.md

@@ -600,10 +600,16 @@ config
   .init((Plugin, args) => new Plugin(...args));
 ```
 
+#### Config plugins: removing
+
+```js
+config.plugins.delete(name)
+```
+
 #### Config resolve plugins
 
 ```js
-// Backed at config.plugins
+// Backed at config.resolve.plugins
 config.resolve.plugin(name) : ChainedMap
 ```
 
@@ -617,22 +623,28 @@ config.resolve
   .use(WebpackPlugin, args)
 ```
 
-#### Config plugins: modify arguments
+#### Config resolve plugins: modify arguments
 
 ```js
 config.resolve
   .plugin(name)
   .tap(args => newArgs)
 ```
 
-#### Config plugins: modify instantiation
+#### Config resolve plugins: modify instantiation
 
 ```js
 config.resolve
   .plugin(name)
   .init((Plugin, args) => new Plugin(...args))
 ```
 
+#### Config resolve plugins: removing
+
+```js
+config.resolve.plugins.delete(name)
+```
+
 #### Config node
 
 ```js