Merge pull request #832 from alphagov/PP-13994-fix_typo

PP-13994 fix typo

Author: SandorArpa

source/index.html.erb

@@ -101,7 +101,7 @@ description: GOV.UK Pay is for central government, local authorities, police and
           <ul class="govuk-list govuk-list--bullet">
             <li>begin and complete payments</li>
             <li>view the event history for individual payments</li>
-            <li>view transactions, refunds, and siputes within a specified time period</li>
+            <li>view transactions, refunds, and disputes within a specified time period</li>
             <li>issue full or partial refunds</li>
             <li>create agreements to take recurring payments</li>
           </ul>