docs: add missing bind mounts

[MikeMcC399]

Issue

The following examples in included/README.md will not run, since they are missing bind mounts to a Cypress project:

• Arguments > run a single spec
• Entry with arguments

Change

• Arguments > run a single spec
  • Add -v .:/e2e -w /e2e to the command line.
  • Change the spec path and name to cypress/e2e/spec.cy.js for compatibility with the default Cypress example spec name.
• Entry with arguments
  • Add -v .:/e2e -w /e2e to the command line.

[cypress-app-bot]

• Create a Draft Pull Request if your PR is not ready for review. Mark the PR as Ready for Review when you're ready for a Cypress team member to review the PR.

[MikeMcC399]

Preview

• https://github.com/MikeMcC399/cypress-docker-images/tree/add-bind-mounts/included#arguments
• https://github.com/MikeMcC399/cypress-docker-images/tree/add-bind-mounts/included#entry-with-arguments