Try to add CI

tox.ini

@@ -0,0 +1,46 @@
+[tox]
+envlist =
+    py38-django31
+
+    linters
+skipsdist = True
+
+[testenv]
+sitepackages = True
+deps =
+    -r{toxinidir}/requirements.txt
+    coverage
+commands =
+    coverage run --omit='*migrations*,apps/scripts*' --source=apps,note_kfet ./manage.py test apps/
+    coverage report -m
+
+[testenv:linters]
+deps =
+    flake8
+    flake8-colors
+    flake8-django
+    flake8-import-order
+    flake8-typing-imports
+    pep8-naming
+    pyflakes
+commands =
+    flake8 apps/
+
+[flake8]
+ignore = W503, I100, I101
+exclude =
+    .tox,
+    .git,
+    __pycache__,
+    build,
+    dist,
+    *.pyc,
+    *.egg-info,
+    .cache,
+    .eggs,
+    *migrations*
+max-complexity = 15
+max-line-length = 160
+import-order-style = google
+application-import-names = flake8
+format = ${cyan}%(path)s${reset}:${yellow_bold}%(row)d${reset}:${green_bold}%(col)d${reset}: ${red_bold}%(code)s${reset} %(text)s