Make rstcheck happy (Vimjas#174)

Ready ro be v0.3.8 (Vimjas#173)

Merge pull request Vimjas#170 from Kuniwak/ready-to-be-v0.3.7

Ready to be v0.3.7

Ready to be v0.3.6

Merge pull request Vimjas#156 from Kuniwak/ready-v0.3.5

Ready to be v0.3.5

Merge pull request Vimjas#150 from Kuniwak/v0.3.4

Ready to be v0.3.4

Ready to v0.3.3

Ready to v0.3.2

Ready to v0.3.1

Ready to v0.3.0

Fixed: Vimjas#28, Vimjas#33, Vimjas#35, Vimjas#36