fix typo

Author: Alice Bartlett

test/unit/search_api_test.rb

@@ -36,12 +36,12 @@ class SearchAPITest < ActiveSupport::TestCase
 @rummager_api.expects(:unified_search).with(filter_link: @manual_link,count: "1",fields: %w{title}).returns(@manual_search_response)
 end
 
-should"returns search results from rummager"do
+should"return search results from rummager"do
 search_response=@search_api.search(@search_params)
 assert_equal(@search_results,search_response.fetch(:results))
 end
 
-should"returns manual from rummager"do
+should"return manual from rummager"do
 search_response=@search_api.search(@search_params)
 assert_equal({title: @manual_title},search_response.fetch(:scope))
 end