udpate README + workflow web

Author: rizac

.github/workflows/pytest-web.yml

@@ -59,11 +59,12 @@ jobs:
         run: |
           python -m venv venv
           source venv/bin/activate
-          python -m pip install --upgrade pip setuptools wheel
+          # python -m pip install --upgrade pip setuptools wheel
           pip install -r "${REQUIREMENTS_FILE}"
           # remove all django* packages from requirements (so we can re-install newer versions):
           pip list --format=freeze | grep -i '^django' | sed -E 's/[<=>@].*$//' | xargs -r pip uninstall -y
-          pip install -U -e -v ".[web]"  # upgrade all packages to most recent ones
+          pip install -U -e ".[web]" --no-cache-dir # upgrade all packages to most recent ones
+          pipdeptree -r -p Django  # see what django version and why
           # pip install -U --no-deps django  # force django to latest possible
 
       # Run Django migrations and pytest