Update wording

doc/workflow/merge_requests.md

@@ -43,7 +43,7 @@ $ git checkout origin/merge-requests/1
 
 ![MR diff](merge_requests/merge_request_diff.png)
 
-If you click to "Hide whitespace changes" button, you can see diff without whitespace changes.
+If you click the "Hide whitespace changes" button, you can see the diff without whitespace changes.
 
 ![MR diff without whitespace](merge_requests/merge_request_diff_without_whitespace.png)
 

spec/features/merge_requests/toggle_whitespace_changes.rb

@@ -9,12 +9,12 @@ feature 'Toggle Whitespace Changes', js: true, feature: true do
     visit diffs_namespace_project_merge_request_path(project.namespace, project, merge_request)
   end
 
-  it 'should have a button to toggle whitespace changes' do
+  it 'has a button to toggle whitespace changes' do
     expect(page).to have_content "Hide whitespace changes"
   end
 
   describe 'clicking "Hide whitespace changes" button' do
-    it 'should hide whitespace changes' do
+    it 'toggles the "Hide whitespace changes" button' do
       click_link "Hide whitespace changes"
       expect(page).to have_content "Show whitespace changes"
     end