Update README.md

Author: judgej

README.md

@@ -1,4 +1,24 @@
 jquery-maxsubmit
 ================
 
-jQuery plugin to detect if too many form items will be submitte for the server to cope with.
+jQuery plugin to detect if too many form items will be submitte for the server to cope with.
+
+Some appications, such as ecommerce sites, can have administration forms that submit well
+over a thousand parameters. PHP, by default, is set to accept only one thousand parameters
+and so some of the submitted data can get lost.
+
+Most applications don't check whether they received everything, and so data can get broken
+easily and silently. A WooCommerce product with 40 variations can have over 1300 submitted
+form items, and when saving the product you have no idea that much of that data is being
+discarded.
+
+Luckily the maximum number of accepted parameters can be changed in php.ini The problem is,
+many site owners have no idea this needs to be done until it is too late and their
+WooCommerce store has lost half its product variations.
+
+What this jQuery plugin attempts to do, is warn the site administrator before a form is
+submitted, on the client (browser) side, and give the administrator a chance to cancel the
+submit and change the settings on the server. It does this by counting how many items
+will be submitted in a form (it does this, hopefully, intellidently by taking into account
+all the form item types and selected values). The plugin is given the maximum number of
+items the server will accept when the page is generated, so it has a number to compare to.