irssi: add page (#1676)

pages/common/irssi.md

@@ -0,0 +1,27 @@
+# irssi
+
+> Text based IRC client.
+
+- Open irssi and connect to a server with a nickname:
+
+`irssi -n {{nickname}} -c {{server.name.com}}`
+
+- Open irssi and connect with a specific server on a given port:
+
+`irssi -c {{server.name.com}} -p {{port}}`
+
+- View the help:
+
+`irssi --help`
+
+- Join a channel:
+
+`/join {{#channelname}}`
+
+- Change active window (starts at 1):
+
+`/win {{window_number}}`
+
+- Exit the application cleanly and quitting any server(s):
+
+`/quit`