Update alt text

src/main/resources/messages.properties

@@ -718,7 +718,7 @@ ohep-thank-you.title=Thank you, the Office of Home Energy Programs may contact y
 ohep-thank-you.header=Thank you
 ohep-thank-you.content1=The Office of Home Energy Programs (OHEP) <b>may contact you by mail</b> to ask for additional information.
 ohep-thank-you.content2=However, if you are eligible and we have all the information needed we'll send money to your utility companies.
-
+ohep-thank-you-alt-text=Logo for the Office of Home Energy Programs, Your Home Energy Partner
 
 medical-expenses.title=Medical expenses
 medical-expenses.header=For anyone in your household 60 or older or who is getting disability benefits, what medical expenses do you all pay for?

src/main/resources/templates/mdBenefitsFlow/ohepThankYou.html

@@ -11,7 +11,7 @@
         <div class="center text--align-center">
           <th:block
               th:replace="~{fragments/cardHeader :: cardHeader(header=#{ohep-thank-you.header})}"/>
-          <img src="/assets/images/ohep-logo.png" alt="Logo for the Office of Home Energy Programs" class="ohep-logo" style="height: 33%; width: 33%;">
+          <img src="/assets/images/ohep-logo.png" th:alt="#{ohep-thank-you-alt-text}" class="ohep-logo" style="height: 33%; width: 33%;">
         </div>
         <div class="form-card__content">
           <p th:utext="#{ohep-thank-you.content1}"></p>