You can edit the spacing using CSS or inline HTML.
Without seeing you actual spacing problem, I don't know what spacing you are referring too. Is each bullet to close to each other? Is the text to close to the bullet?
I will assume each line is to close to each other in which case the attribute you want is line-height
In-line might look like this:
<ul style="line-height:1.4;"> - change the 1.4 to whatever spacing you want.
CSS might look like this:
<styletype="text/css">
ul {
line-height: 1.50em; - \\You could also use % as well like 150%
}
</style>