Fixed wrong grammar and spelling, made grammar within list more consistent

[maxi0604]

"Email" is a coating for metal surfaces. An "E-Mail" is an electronic letter. Also, there are no blanks within compound words.

Made the list of standards consistently not use passive forms.

[goldibex]

Ich bin kein Muttersprachler, aber für mich sieht es gut aus! @agnoster schau mal an?

[heunland]

Lgtm (native German speaker)