doc: add "oauth" for IRC connection in FAQ

doc/de/weechat_faq.de.txt

@@ -527,6 +527,23 @@ Connect durchführen:
 /connect freenode
 ----------------------------------------
 
+// TRANSLATION MISSING
+[[irc_oauth]]
+How to connect to a server that requires "oauth"?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some servers like 'twitch' require oauth to connect.
+
+The oauth is simply a password with the value "oauth:XXXX".
+
+You can create such server and connect with following commands (replace name
+and address by appropriate values):
+
+----------------------------------------
+/server add name irc.server.org -password="oauth:XXXX"
+/connect name
+----------------------------------------
+
 [[irc_sasl]]
 Wie kann ich mich, vor dem Betreten von Channels, identifizieren?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

doc/en/weechat_faq.en.txt

@@ -501,6 +501,22 @@ Setup server port, SSL, dhkey_size, then connect:
 /connect freenode
 ----------------------------------------
 
+[[irc_oauth]]
+How to connect to a server that requires "oauth"?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some servers like 'twitch' require oauth to connect.
+
+The oauth is simply a password with the value "oauth:XXXX".
+
+You can create such server and connect with following commands (replace name
+and address by appropriate values):
+
+----------------------------------------
+/server add name irc.server.org -password="oauth:XXXX"
+/connect name
+----------------------------------------
+
 [[irc_sasl]]
 How can I be identified before joining channels?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

doc/fr/weechat_faq.fr.txt

@@ -523,6 +523,22 @@ Configurez le port du serveur, SSL, dhkey_size, puis connectez-vous :
 /connect freenode
 ----------------------------------------
 
+[[irc_oauth]]
+Comment se connecter à un serveur qui requiert "oauth" ?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Des serveurs tels que 'twitch' requièrent oauth pour se connecter.
+
+L'oauth est simplement un mot de passe avec la valeur "oauth:XXXX".
+
+Vous pouvez créer un tel serveur et vous y connecter avec les commandes
+suivantes (remplacez le nom et l'adresse par les valeurs appropriées) :
+
+----------------------------------------
+/server add nom irc.server.org -password="oauth:XXXX"
+/connect nom
+----------------------------------------
+
 [[irc_sasl]]
 Comment puis-je être identifié avant de rejoindre les canaux ?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

doc/it/weechat_faq.it.txt

@@ -522,6 +522,23 @@ Impostare la porta del server, SSL, dhkey_size, poi riconnettersi:
 /connect freenode
 ----------------------------------------
 
+// TRANSLATION MISSING
+[[irc_oauth]]
+How to connect to a server that requires "oauth"?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some servers like 'twitch' require oauth to connect.
+
+The oauth is simply a password with the value "oauth:XXXX".
+
+You can create such server and connect with following commands (replace name
+and address by appropriate values):
+
+----------------------------------------
+/server add name irc.server.org -password="oauth:XXXX"
+/connect name
+----------------------------------------
+
 [[irc_sasl]]
 Come posso essere identificato prima di entrare in un canale?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

doc/ja/weechat_faq.ja.txt

@@ -467,6 +467,22 @@ gnutls ハンドシェイクに関するエラーの場合、Diffie-Hellman キ
 /connect freenode
 ----------------------------------------
 
+// TRANSLATION MISSING
+[[irc_oauth]]
+=== How to connect to a server that requires "oauth"? ===
+
+Some servers like 'twitch' require oauth to connect.
+
+The oauth is simply a password with the value "oauth:XXXX".
+
+You can create such server and connect with following commands (replace name
+and address by appropriate values):
+
+----------------------------------------
+/server add name irc.server.org -password="oauth:XXXX"
+/connect name
+----------------------------------------
+
 [[irc_sasl]]
 === どうすればチャンネル参加前にニックネーム認証を行うことができますか。 ===
 

doc/pl/weechat_faq.pl.txt

@@ -506,6 +506,23 @@ Ustaw port serwera, SSL, dhkey_size, następnie się połącz:
 /connect freenode
 ----------------------------------------
 
+// TRANSLATION MISSING
+[[irc_oauth]]
+How to connect to a server that requires "oauth"?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Some servers like 'twitch' require oauth to connect.
+
+The oauth is simply a password with the value "oauth:XXXX".
+
+You can create such server and connect with following commands (replace name
+and address by appropriate values):
+
+----------------------------------------
+/server add name irc.server.org -password="oauth:XXXX"
+/connect name
+----------------------------------------
+
 [[irc_sasl]]
 Jak mogę się zidentyfikować przed wejściem na kanały?
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~