(#87) Clipboard API docs

Author: s1hofmann

lib/clipboard.class.ts

@@ -1,13 +1,27 @@
 import { NativeAdapter } from "./adapter/native.adapter.class";
 
+/**
+ * {@link Clipboard} class gives access to a systems clipboard
+ */
 export class Clipboard {
+  /**
+   * {@link Clipboard} class constructor
+   * @param nativeAdapter {@link NativeAdapter} instance used to access OS API
+   */
   constructor(private nativeAdapter: NativeAdapter) {
   }
 
+  /**
+   * {@link copy} copies a given text to the system clipboard
+   * @param text The text to copy
+   */
   public copy(text: string): Promise<void> {
     return this.nativeAdapter.copy(text);
   }
 
+  /**
+   * {@link paste} pastes the current content of the system clipboard (limited to text)
+   */
   public paste(): Promise<string> {
     return this.nativeAdapter.paste();
   }