Add course review raffle message

Author: thebradbain

app/views/course_reviews/partials/_reviews_course_search_form.html.erb

@@ -1,6 +1,13 @@
 <% academic_terms = @academic_terms %>
 <% departments = @departments %>
 
+<aside class="notification is-info">
+<strong>Write reviews for a chance to enter prizes!</strong><br>
+One raffle entry will be granted for each course review that you submit.
+There are a total of 6 prizes: one $50 gift card and five $20 gift cards.
+The raffle will end on December 17th, 2019 at 11:59pm.
+</aside>
+
 <section class="message" id="course-search-form">
   <div class="message-header">
     <div>Search Courses</div>
@@ -40,7 +47,7 @@
           </div>
         </div>
       </div>
-      <div class="field">
+      <div class="field"> TODO: Fix department search
         <label class="label">Department</label>
         <div class="control">
           <div class="select">

app/views/course_reviews/partials/_reviews_instructors_search_form.html.erb

@@ -1,3 +1,10 @@
+<aside class="notification is-info">
+<strong>Write reviews for a chance to enter prizes!</strong><br>
+One raffle entry will be granted for each course review that you submit.
+There are a total of 6 prizes: one $50 gift card and five $20 gift cards.
+The raffle will end on December 17th, 2019 at 11:59pm.
+</aside>
+
 <section class="message" id="instructor-search-form">
   <div class="message-header">
     <div>Search Instructors</div>