On GeoDirectory archive pages the listing title and image already link to the listing. If you want a clear button as well, add a GD > Post Badge to the archive item template and point its link at the listing URL.

1. Go to GeoDirectory > Settings > General > Pages and open the page set as Archive item page.
2. Add a GD > Post Badge block (or shortcode) where you want the button.
3. Set the field key to Title and the condition to is not empty, so the badge shows on every listing.
4. Enter your button text in Badge, for example View details.
5. In the Click Action settings, set Link url to %%post_url%%.
6. Pick a colour or set your own background and text colours, then update the page.

As a shortcode it looks like this:

[gd_post_badge key='post_title' condition='is_not_empty' badge='View details' link='%%post_url%%' bg_color='#0073aa' txt_color='#ffffff']

Use the read more link instead

GD > Post Content can end the excerpt with a link to the listing. The link only appears when you also set a word limit or a max height, so include one of them:

[gd_post_content key='post_content' limit='30' read_more='View details']

More examples are in GD > Post Badge.