Edited (minor) ledes of phase descs.
--- a/latest/use-cases/index.html Tue Mar 31 12:35:29 2015 -0500
+++ b/latest/use-cases/index.html Tue Mar 31 12:39:59 2015 -0500
@@ -453,7 +453,7 @@
<section>
<h3>Negotiation of Payment Terms</h3>
<p>
-The first phase of the payment process is where the <a>payer</a> and the
+In the first phase of the payment process, the <a>payer</a> and the
<a>payee</a> negotiate the terms of the payment.
</p>
@@ -482,8 +482,7 @@
<section>
<h3>Negotiation of Payment Instruments</h3>
<p>
-The second phase of the payment process is used to determine which
-<a title="payment instrument">payment instruments</a> the
+In the second phase of the payment process, <a>payer</a> and <a>payee</a> determine which <a title="payment instrument">payment instruments</a> the
<a>payer</a> will use to transfer funds to the <a>payee</a>.
</p>
@@ -547,8 +546,7 @@
<section>
<h3>Delivery of Product/Receipt and Reversals</h3>
<p>
-The fourth phase of the payment process is used to complete the
-<a>transaction</a> by providing the <a>payer</a> with a receipt and/or the
+In the fourth phase of the payment process, the <a>transaction</a> is completed by providing the <a>payer</a> with a receipt and/or the
product that was purchased.
</p>