Hello Marcel,

you just need to open /include/defines.php and add your network there:

$satelite_social_links = array('Fb' => esc_html__('Facebook', 'satelite'),
'Tw' => esc_html__('Twitter', 'satelite'),
'Be' => esc_html__('Behance', 'satelite'),
'Db' => esc_html__('Dribbble', 'satelite'),
'Gp' => esc_html__('Google Plus', 'satelite'),
'In' => esc_html__('Instagram', 'satelite'),
'Ld' => esc_html__('Linkedin', 'satelite'),
'Wa' => esc_html__('WhatsApp', 'satelite'),
'Da' => esc_html__('DeviantArt', 'satelite'),
'Dg' => esc_html__('Digg', 'satelite'),
'Fr' => esc_html__('Flickr', 'satelite'),
'Fq' => esc_html__('Foursquare', 'satelite'),
'Gi' => esc_html__('Git', 'satelite'),
'Pn' => esc_html__('Pinterest', 'satelite'),
'Rd' => esc_html__('Reddit', 'satelite'),
'Sk' => esc_html__('Skype', 'satelite'),
'Sc' => esc_html__('Souncloud', 'satelite'),
'Su' => esc_html__('Stumbleupon', 'satelite'),
'Tb' => esc_html__('Tumblr', 'satelite'),
'Ya' => esc_html__('Yahoo', 'satelite'),
'Ye' => esc_html__('Yelp', 'satelite'),
'Yt' => esc_html__('Youtube', 'satelite'),
'Vm' => esc_html__('Vimeo', 'satelite'),

'Mn' => esc_html__('My Network', 'satelite'),
'Xg' => esc_html__('Xing', 'satelite') );

And then you can select it from the drop down list in theme options