Reword docs (#5226)

docs/index.md

@@ -10,7 +10,7 @@ Resources
 * [Drush packages available via Composer](https://packagist.org/search/?type=drupal-drush)
 * [A list of modules that include Drush integration](https://www.drupal.org/project/project_module?f[2]=im_vid_3%3A4654&solrsort=ds_project_latest_release+desc)
 * Drush expects all participants to abide by the [Drupal Code of Conduct](https://www.drupal.org/dcoc).
-* Drush 8 is no longer supported, but [here are its docs](https://docs.drush.org/en/8.x/install/).
+* Drush 8 is no longer recommended, but [here are its docs](https://docs.drush.org/en/8.x/install/).
 
 Support
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