linking to MDN for apply method for easy referencing

Author: Rouzbeh Sarrafieh

.gitignore

@@ -3,4 +3,4 @@ npm-debug.log
 build
 generated
 .antwar
-
+.vscode

content/concepts/plugins.md

@@ -12,7 +12,7 @@ They also serve the purpose of doing **anything else** that a [loader](/concepts
 
 ## Anatomy
 
-A webpack **plugin** is a JavaScript object that has an `apply` property. This `apply` property is called by the webpack compiler, giving access to the **entire** compilation lifecycle.
+A webpack **plugin** is a JavaScript object that has an [`apply`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply) property. This `apply` property is called by the webpack compiler, giving access to the **entire** compilation lifecycle.
 
 **ConsoleLogOnBuildWebpackPlugin.js**