Add `myincr` completion
Add `myincr` completion

https://github.com/gaojunbin/zsh-myincr/issues/1 is closed, add `myincr`.

Signed-off-by: Joe Block <13bb081c6ac072ef78a3e348068e2204400d7335@unixorn.net>

unixorn/awesome-zsh-plugins,voronkovich/awesome-zsh-plugins