/wp-content/plugins
directory, or install the plugin through the WordPress plugins screen directly.You will found the settings page from WordPress Dashboard > Settings > Wishlist – Shibainu IT
By default this plugin add wishlist button beside Add to cart Button (In Product detail page). However you can use this shortcode [SIT-WISHLIST-BUTTON]
for placing the button anywhere in the product page
Go to WordPress Dashboard > Settings > Permalinks, then click Save Changes.