A) For display the buttons below a content on every Posts or/and Pages, just check the checkbox "Show on Posts" or/and "Show on Pages" in the section "Display options", then click the "Save changes" button.', $text ); ?>
B) For add the buttons inside a post from WP Post/Page Editor use the following shortcode:', $text ); ?>
C) For add the buttons to the widget area (in sidebar, footer etc.) use the "Text" widget and add inside it the following shortcode:', $text ); ?>
D) For add the buttons directly to a theme files, just add the following code to needed place (where you want to display the buttons) in your theme files:', $text ); ?>