"and tell the author" -> "and tells the author" (grammar)
"It's free, open source and awesome." -> "It's free, open source, and awesome." (oxford comma)
"alarmed?????" -> "tuned" (better describes to the audience what they should do.)
"there is for example a new reason" -> "there is a new cause" (concision)
"and tell the author" -> "and tells the author" (grammar) "It's free, open source and awesome." -> "It's free, open source, and awesome." (oxford comma) "alarmed?????" -> "tuned" (better describes to the audience what they should do.) "there is for example a new reason" -> "there is a new cause" (concision)