Update TC_005_register_free_plan_with_github_id_rspec.rb

At line 37, add 
", xpath: @data_xpath, url: @data_url, str: @data_str, user: @data_user"
to EditAccountPage.new
fix bugs
delete app_brief ref
TC_010: Still block
update README
Update README.md
Add ja_JP data to file data_str.yml
remove error code
remove error code