v1.1.1

What's Changed

It is now available with substitution name that contains whitespaces.
In this case, It must be enclosed in quotes(single or double).

Examples are as follows:

$ varst -i path/to/your.rst -o path/to/your.rst 'sub name'='new value'
$ varst -i path/to/your.rst -o path/to/your.rst 'sub name=new value'