DDEV env rewrite url

[joshuapease]

Realized we need to rewrite the URL in .ddev/.env.web

To test this change, follow these steps:

1. Choose a folder to test in and move into it

   cd /path/to/web/projects
   mkdir my-project
   cd my-project

2. Run the composer starter package.

docker run --rm -it -v "$PWD":/app -v ${COMPOSER_HOME:-$HOME/.composer}:/tmp composer create-project viget/craft-site-starter=dev-jp/ddev-env-rewrite ./ --ignore-platform-reqs

3. Start DDEV & Install Craft

   ddev start
   ddev craft install

4. Run ddev launch to open the project in your browser