Fix coding standards in specs

spec/features/playlists/crud_spec.rb

@@ -8,10 +8,10 @@ feature 'Playlists CRUD' do
     visit playlists_path
 
     click_link playlist[:name]
-    fill_in 'Name', with: 'Rock'
+    fill_in 'Name', with: 'new playlist name'
     click_button 'Save'
 
     expect(current_path).to eq playlists_path
-    expect(page).to have_content 'Rock'
+    expect(page).to have_content 'new playlist name'
   end
 end

spec/features/sessions/sign_up_spec.rb

@@ -11,7 +11,7 @@ feature 'User sign up' do
   scenario 'creates the user' do
     expect {
       click_button 'Sign up'
-    }.to change(User, :count).by(1)
+    }.to change(User, :count).by 1
   end
 
   scenario 'redirects to the home page' do

spec/features/tracks/player_spec.rb

@@ -6,7 +6,7 @@ feature 'Tracks player' do
   scenario 'includes a player in track page' do
     track = create :track_with_sound
 
-    visit track_path(track)
+    visit track_path track
 
     expect(page).to have_xpath "//audio[@src='#{sound_path track.sound}']"
   end