Updated default PYTHON_VERSION to 3.8 (#25)

Author: hannseman

.env

@@ -1,4 +1,4 @@
-PYTHON_VERSION=3.6
+PYTHON_VERSION=3.8
 POSTGRES_VERSION=9.6
 POSTGIS_VERSION=2.5
 MYSQL_VERSION=8

README.md

@@ -97,7 +97,7 @@ To enter a bash shell within the container, run:
 | Environment Variable | Default | Description |
 | --- | --- | --- |
 | `DJANGO_PATH` | None | The path to the Django codebase on your local machine |
-| `PYTHON_VERSION` | `3.6` | The python version to run tests against |
+| `PYTHON_VERSION` | `3.8` | The python version to run tests against |
 | `POSTGRES_VERSION` | `9.6` | The version of Postgres to use |
 | `MYSQL_VERSION` | `8` | The mysql version to use |
 | `MARIADB_VERSION` | `10.4` | The mariadb version to use |