Added WWFF reference to general_words_lang.php

Added WWFF reference line

application/language/english/general_words_lang.php

@@ -90,6 +90,7 @@ $lang['gen_hamradio_usa_state'] = 'USA State';
 $lang['gen_hamradio_county_reference'] = 'USA County';
 $lang['gen_hamradio_iota_reference'] = 'IOTA Reference';
 $lang['gen_hamradio_sota_reference'] = 'SOTA Reference';
+$lang['gen_hamradio_wwff_reference'] = 'WWFF Reference';
 $lang['gen_hamradio_dok'] = 'DOK';
 
 $lang['gen_hamradio_sig'] = 'Sig';
@@ -103,4 +104,4 @@ $lang['dashboard_countries_breakdown'] = 'Countries Breakdown';
 
 $lang['gen_from_date'] = 'From date';
 
-$lang['gen_this_qso_was_confirmed_on'] = 'This QSO was confirmed on';
+$lang['gen_this_qso_was_confirmed_on'] = 'This QSO was confirmed on';