Issue #3051548 by Rkumar, quietone, Balu Ertl, nitesh624, lauriii, pandaski, alexpott: Fix spelling of "email"

Issue #2256367 by pradeepjha, cburschka, mgifford, Rkumar, jhodgdon, xjm, longwave: Consistently use "website" instead of "web site" in Drupal Core docs and UI text

Issue #3135629 by alexpott, dww, daffie, jungle, Rkumar, balsama, xjm: Minimum MySQL version requirement is not confirmed when upgrading existing sites from Drupal 8 to Drupal 9