Update README.md

README.md

@@ -1,7 +1,9 @@
 hexdump.js
 ==========
 
-Given an ArrayBuffer, will create similar output to the unix `hexdump` command.
+Given an `ArrayBuffer`, will create string output similar to the unix `hexdump` command.
+
+For example, the text of "Hello, World!\n" looks something like this:
 
 ```
         0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F