Add more explanations to readme

README.md

@@ -4,9 +4,15 @@
 [![NPM version](https://img.shields.io/npm/v/unhomoglyph.svg?style=flat)](https://www.npmjs.org/package/unhomoglyph)
 
 > Replace all homoglyphs with base characters. Useful to detect similar strings.
+For example, to prohibit register similar looking nicknames at websites.
 
 Data source - [Recommended confusable mapping for IDN](http://www.unicode.org/Public/security/latest/confusables.txt), v9.0.0.
 
+__Note!__ Text after transform is NOT intended be read by humans. For example,
+`m` will be transformed to `r` + `n`. Goal is to compare 2 strings after
+transform, to check if sources looks similar or not. If sources look similar,
+then transformed strings are equal.
+
 
 ## Install
 
@@ -21,6 +27,7 @@ npm install unhomoglyph --save
 const unhomoglyph = require('unhomoglyph');
 
 console.log(unhomoglyph('AΑАᎪᗅᴀꓮ')); // => AAAAAAA
+console.log(unhomoglyph('m'));        // => rn (r + n)
 ```