Update index.md
Update index.md

It was decided that the word "clean" should never be used in this products description as it has negative connotations in the email industry.
hardikjain29/docs,Aonepathan/docs,Zaftula/docs,sendgrid/docs,L2G/docs,Zaftula/docs,awwa/docs,taz77/docs,L2G/docs,taz77/docs,jacobmovingfwd/docs,bogdanboss/docs,jacobmovingfwd/docs,Aonepathan/docs,GilUpstream/docs,bogdanboss/docs,Ranhiru/docs,ksigler7/docs,GilUpstream/docs,GilUpstream/docs,katieporter/docs,Aonepathan/docs,hardikjain29/docs,jacobmovingfwd/docs,jacobmovingfwd/docs,GilUpstream/docs,Whatthefoxsays/docs,Whatthefoxsays/docs,awwa/docs,L2G/docs,taz77/docs,katieporter/docs,Aonepathan/docs,Ranhiru/docs,hardikjain29/docs,bogdanboss/docs,taz77/docs,taz77/docs,awwa/docs,Ranhiru/docs,bogdanboss/docs,awwa/docs,L2G/docs,Ranhiru/docs,ksigler7/docs,jacobmovingfwd/docs,Zaftula/docs,ksigler7/docs,bogdanboss/docs,awwa/docs,katieporter/docs,L2G/docs,hardikjain29/docs,sendgrid/docs,hardikjain29/docs,GilUpstream/docs,Whatthefoxsays/docs,katieporter/docs,katieporter/docs,Zaftula/docs,Aonepathan/docs,sendgrid/docs,Ranhiru/docs,Zaftula/docs