Adding pagination on template page wordpress

You have not add “paged” in WP_Query args array ,that’s why your pagination not working. try this code , it will work definitely

$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$original_query = $wp_query;
$wp_query = null;
$args=array('posts_per_page'=>5, 'tag' => 'raspee', 'paged'=>$paged);
$wp_query = new WP_Query( $args );