Edited the two files to better incorporate with the main branch's version

Added announcement branch's models.py file

added assignments path

See merge request !3

# Conflicts:
#   widget_group3/widget_group3/urls.py
#   widget_group3/widget_group3/views.py

Announcement board

See merge request !2

# Conflicts:
#   widget_group3/widget_group3/urls.py
#   widget_group3/widget_group3/views.py

added forum to urls and views

See merge request !1

"This is the" instead of "welcome to"

Announcement Board Changes - Josh