fixed wrong link destination for 'Find out how to pay'

Author: jakecosgrove

docs/_includes/custom-components/campaign-feature-list.html

@@ -417,7 +417,7 @@ <h3 class="nhsuk-heading-s">Message performance and charging</h3>
         <div class="nhsuk-hint">
           Pay for the messages you send every quarter with cross charging
         </div>
-        <a href="https://notify.nhs.uk/using-nhs-notify/recipients-you-cannot-message">Find out how to pay</a>
+        <a href="https://notify.nhs.uk/pricing/how-to-pay">Find out how to pay</a>
       </td>
       <td class="nhsuk-table__cell">
         <abbr title="Yes">

docs/_includes/custom-components/direct-message-feature-list.html

@@ -448,7 +448,7 @@ <h3 class="nhsuk-heading-s">Message performance and charging</h3>
         <div class="nhsuk-hint">
           Pay for the messages you send every quarter with cross charging
         </div>
-        <a href="https://notify.nhs.uk/using-nhs-notify/recipients-you-cannot-message">Find out how to pay</a>
+        <a href="https://notify.nhs.uk/pricing/how-to-pay">Find out how to pay</a>
       </td>
       <td class="nhsuk-table__cell">
         <abbr title="Yes">

docs/_includes/custom-components/transactional-feature-list.html

@@ -419,7 +419,7 @@ <h3 class="nhsuk-heading-s">Message performance and charging</h3>
         <div class="nhsuk-hint">
           Pay for the messages you send every quarter with cross charging
         </div>
-        <a href="https://notify.nhs.uk/using-nhs-notify/recipients-you-cannot-message">Find out how to pay</a>
+        <a href="https://notify.nhs.uk/pricing/how-to-pay">Find out how to pay</a>
       </td>
       <td class="nhsuk-table__cell">
         <abbr title="Yes">