put spaces between links

For question 2.): you could simply put a non breaking space in between:

<a href=" კახეთი.html ">კახეთი </a>
&nbsp;
<a href=" სვანეთი.html ">სვანეთი </a>
&nbsp;
<a href=" ვარძია.html ">ვარძია </a>

Which results in:

კახეთი   სვანეთი   ვარძია

Or you can add paddings/margins inside your style definitions so that anchors ("a tags") reserve some space to the left and/or right. The latte certainly is the preferred way to go.

You could use   for space, it is a valid HTML string for space so it'll be validated by W3C too.