Merge pull request #9 from thecoducer/dependabot/pip/django-2.2.21

Bump django from 2.2.18 to 2.2.21

Author: thecoducer

requirements.txt

@@ -3,7 +3,7 @@ certifi==2019.9.11
 chardet==3.0.4
 cycler==0.10.0
 dj-database-url==0.5.0
-Django==2.2.18
+Django==2.2.21
 django-heroku==0.3.1
 googletrans==2.4.0
 gunicorn==19.9.0