fix vimlint error
update document

This modification was missing from the commit
27024ad641031e3be57f04c0495f4798e37b95a0.
Use mingw32-make instead of make on MinGW
[WIP] Improved read performance
[WIP] Improved R/W

- handling (pseudo-)binary directly
[WIP] Improved proc_w32
[WIP] adjust read timeout
[WIP] fixed s:read process