Typo fixed

Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
Add idm settings

Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>
Update AUCTeX settings, using auctex-latexmk

Signed-off-by: Youhei SASAKI <uwabami@gfd-dennou.org>