diff --git a/ReadMe.md b/ReadMe.md
index 1b1da59..d251a5a 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -1,18 +1,39 @@
# numberFormat.js
A simple JS library that automatically formats numbers on your web page.
+This is accomplished using the Intl.NumberFormat library to format the
+numbers, and some custom elements to locate the numbers that need
+formatting and allow them to be replaced by the correct value.
Designed mainly for use on static websites to avoid the bother of
formatting numbers manually.
-## Usage
+## A more succinct description
+This library allows DOM modification based on the Intl.NumberFormat library
+which is part of JS. Providing a custom element that allows you to
+specify number formatting declaratively and without needing to know how to
+format numbers.
+
+## Basic Usage
- Host the script somewhere on your system.
- Ensure you set the language for your HTML element
- Add a script tag to your document head that has the `src` set to this script.\
The script tag must also be set to defer
- - Surround any numbers you want formatting with ` .. ` tags.\
+ - Surround any numbers you want formatting with `` tags.\
These 'custom' tags are used so the script can efficiently find numbers
without needing to resort to jQuery or regex.\
This also allows you to specify numbers you don't want formatted.
+## Formatting Currencies
+To format a currency you need to add the `currency` attribute to your num
+element with the value set in the format `CURRENCY-FORMAT`.
+With currency being the three letter code for the currency.
+And format being one of:
+ - symbol
+ - narrowSymbol
+ - code
+ - name
+This is exactly parallel to the Intl.NumberFormat constructor for
+formatting currencies.
+
### Example
```html
@@ -22,6 +43,7 @@ formatting numbers manually.
This is a formatted number 1234567890
+ This is a simple formatted currency 123