add bootstrap library

Lecture1/myproject/boards/__init__.py

...ure1/myproject/boards/__pycache__/__init__.cpython-36.pyc

Lecture1/myproject/boards/__pycache__/admin.cpython-36.pyc

Lecture1/myproject/boards/__pycache__/models.cpython-36.pyc

Lecture1/myproject/boards/__pycache__/tests.cpython-36.pyc

Lecture1/myproject/boards/__pycache__/views.cpython-36.pyc

Lecture1/myproject/boards/admin.py

Lecture1/myproject/boards/apps.py

Lecture1/myproject/boards/migrations/0001_initial.py

Lecture1/myproject/boards/migrations/__init__.py

...boards/migrations/__pycache__/0001_initial.cpython-36.pyc

...ect/boards/migrations/__pycache__/__init__.cpython-36.pyc

Lecture1/myproject/boards/models.py

Lecture1/myproject/boards/tests.py

Lecture1/myproject/boards/views.py

Lecture1/myproject/db.sqlite3

Lecture1/myproject/manage.py

Lecture1/myproject/myproject/__init__.py

...1/myproject/myproject/__pycache__/__init__.cpython-36.pyc

...1/myproject/myproject/__pycache__/settings.cpython-36.pyc