Fix feature specs for doc pages

spec/features/docs_spec.rb

@@ -32,11 +32,11 @@ feature "Docs" do
     expect_doc_links
   end
 
-  scenario 'Visiting options page' do
+  scenario 'Visiting usage page' do
-    visit docs_path(:options)
+    visit docs_path(:usage)
 
     within('.main') do
-      expect(page).to have_content('Recorder options')
+      expect(page).to have_content('Usage')
     end
 
     expect_doc_links

spec/support/feature_helpers.rb

@@ -10,7 +10,7 @@ module Asciinema
       expect(page).to have_link('How it works')
       expect(page).to have_link('Getting started')
       expect(page).to have_link('Installation')
-      expect(page).to have_link('Recorder options')
+      expect(page).to have_link('Usage')
       expect(page).to have_link('Embedding')
       expect(page).to have_link('FAQ')
     end