📝 Simpilify the structure of API references.

docs/api/clipboard.md

@@ -0,0 +1,38 @@
+# clipboard
+
+An example of writing a string to clipboard:
+
+```javascript
+var clipboard = require('clipboard');
+clipboard.writeText('Example String');
+```
+
+## clipboard.readText()
+
+Returns the content in clipboard as plain text.
+
+## clipboard.writeText(text)
+
+* `text` String
+
+Writes the `text` into clipboard as plain text.
+
+## clipboard.clear()
+
+Clears everything in clipboard.
+
+## clipboard.has(type)
+
+* `type` String
+
+Returns whether clipboard has data in specified `type`.
+
+**Note:** This API is experimental and could be removed in future.
+
+## clipboard.read(type)
+
+* `type` String
+
+Reads the data in clipboard of the `type`.
+
+**Note:** This API is experimental and could be removed in future.