[#2] Compose body paragraph of home page

* Describes purpose of website at a
  holistic level.
* Directs user to different parts of
  website.
* Has NOT been tested!
Merge branch 'develop' into task-2-create_welcome_page

Conflicts:
	src/DCVDev/Bundle/PersonalSiteBundle/Resources/views/PersonalSite/index.html.twig
[#2] Update composer and finish welcome page
Merge branch 'task-2-create_welcome_page' into develop