linking to pastebin wiki article for explanation

README.md

@@ -9,8 +9,8 @@
 
 *Current version: 1.1.1*
 
-**PrivateBin** is a minimalist, open source online pastebin where the server has
-zero knowledge of pasted data.
+**PrivateBin** is a minimalist, open source online [pastebin](https://en.wikipedia.org/wiki/Pastebin)
+where the server has zero knowledge of pasted data.
 
 Data is encrypted and decrypted in the browser using 256bit AES in [Galois Counter mode](https://en.wikipedia.org/wiki/Galois/Counter_Mode).