docs: update language lists

CONTRIBUTING.pt_br.md

@@ -6,12 +6,15 @@
 [English][EN],
 [Español][ES],
 [Français][FR],
+[Italiano][IT],
 [Kurdi][KU],
+[Lietuvių][LI],
 [Nederlands][NL],
+[Norsk][NO],
 **Português**,
 [Türkçe][TR],
-[العربية][AR],
 [Ελληνικά][GR],
+[العربية][AR],
 [日本語][JA],
 [正體中文][ZH_TW],
 [简体中文][ZH_CN],
@@ -24,10 +27,13 @@
 [ES]:CONTRIBUTING.es.md
 [FR]:CONTRIBUTING.fr.md
 [GR]:CONTRIBUTING.gr.md
+[IT]:CONTRIBUTING.it.md
 [JA]:CONTRIBUTING.ja.md
 [KO_KR]:CONTRIBUTING.ko_kr.md
 [KU]:CONTRIBUTING.ku.md
+[LT]:CONTRIBUTING.lt.md
 [NL]:CONTRIBUTING.nl.md
+[NO]:CONTRIBUTING.no.md
 [PT_BR]:CONTRIBUTING.pt_br.md
 [TR]:CONTRIBUTING.tr.md
 [ZH_CN]:CONTRIBUTING.zh_cn.md