added some text in welcome/index.html.erb
Merge branch 'y-eguchi' of github.com:YoshikiEguchi/kikan_system_01 into YoshikiEguchi-y-eguchi

Conflicts:
	app/views/welcome/index.html.erb
Merge branch 'YoshikiEguchi-y-eguchi' of https://github.com/ychubachi/kikan_system_01

Conflicts:
	app/views/welcome/index.html.erb