Fix install instructions (#131)

Author: andriokha

README.md

@@ -16,7 +16,7 @@ DDEV integration for developing Drupal contrib projects. As a general philosophy
 4. Configure DDEV for Drupal using `ddev config --project-type=drupal --docroot=web --php-version=8.3 --corepack-enable --project-name=[module]` or select these options when prompted using `ddev config`
    - Remove underscores in the project name, or replace with hyphens. (DDEV will do this for you.)
    - See [Misc](#misc) for help on using alternate versions of Drupal core.
-5. Run `ddev add-on get ddev/ddev-selenium-standalone-chrome ddev/ddev-drupal-contrib && ddev add-on get ddev/ddev-drupal-contrib`
+5. Run `ddev add-on get ddev/ddev-selenium-standalone-chrome && ddev add-on get ddev/ddev-drupal-contrib`
 6. Run `ddev start`
 7. Run `ddev poser`
 8. Run `ddev symlink-project`