change wording of password reset pages

lms/templates/forgot_password_modal.html

@@ -18,18 +18,18 @@
       </header>
 
       <div class="instructions">
-        <p>${_("Please enter your e-mail address below, and we will e-mail instructions for setting a new password.")}</p>
+        <p>${_("Please enter your email address below, and we will email instructions for setting a new password.")}</p>
       </div>
 
       <form id="pwd_reset_form" action="${reverse('password_reset')}" method="post" data-remote="true">
         <fieldset class="group group-form group-form-requiredinformation">
-          <legend class="is-hidden">${_("Required Information")}</legend>
+          <legend class="sr">${_("Required Information")}</legend>
 
           <ol class="list-input">
             <li class="field required text" id="forgot-password-modal-field-email">
               <label for="pwd_reset_email">${_("Your E-mail Address")}</label>
               <input class="" id="pwd_reset_email" type="email" name="email" value="" placeholder="example: username@domain.com" aria-describedby="pwd_reset_email-tip" aria-required="true" />
-              <span class="tip tip-input" id="pwd_reset_email-tip">${_("This is the e-mail address you used to register with {platform}").format(platform=microsite.get_value('platform_name', settings.PLATFORM_NAME))}</span>
+              <span class="tip tip-input" id="pwd_reset_email-tip">${_("This should be the email address you used to register with {platform}").format(platform=microsite.get_value('platform_name', settings.PLATFORM_NAME))}</span>
             </li>
           </ol>
         </fieldset>

lms/templates/registration/password_reset_done.html

 <%! from django.utils.translation import ugettext as _ %>
 <header>
-  <h2>${_("Password reset successful")}</h2>
+  <h2>${_("Password reset initiated")}</h2>
   <hr>
 </header>
 
 <div class="message">
-  <p>${_("We've e-mailed you instructions for setting your password to the e-mail address you submitted. You should be receiving it shortly.")}</p>
+  <p>{% blocktrans with start_link='<a href="/login">' end_link='</a>' %}
+    The system is looking for your account. You should receive an email with password reset
+    instructions shortly. If you don't see it within a few minutes (and it's not in your email's
+    Spam or Trash), your account may be under a different email address. Try {{ start_link }}logging
+    in{{ end_link }} again with some other email addresses you maintain.
+  {% endblocktrans %}</p>
 </div>