Error fixes
Merge branch 'master' of https://github.com/charlesmudy/Respmail

# By Shina Charles Memud (2) and others
# Via Shina Charles Memud (2) and Ted Goas (1)
* 'master' of https://github.com/charlesmudy/Respmail:
  Remove `background-color` when `bgcolor` present
  Update index.html
  Update README.md
  Update README.md