Typos pointed out by Anfang Zhou

http://stacks.math.columbia.edu/tag/05NE#comment-779
http://stacks.math.columbia.edu/tag/05NH#comment-780
http://stacks.math.columbia.edu/tag/00HL#comment-782
http://stacks.math.columbia.edu/tag/01ED#comment-783
http://stacks.math.columbia.edu/tag/01UP#comment-789