Add irssi official image docs!

Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)

irssi/README-short.txt

@@ -0,0 +1 @@
+irssi - The IRC client of the future

irssi/README.md

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+# Supported tags and respective `Dockerfile` links
+
+- [`0.8.17`, `0.8`, `0`, `latest`](https://github.com/jfrazelle/irssi/blob/a79accdf9258f9c2917fcff8ea047f4bf6754cdf/Dockerfile)
+
+For more information about this image and its history, please see the [relevant
+manifest file
+(`library/irssi`)](https://github.com/docker-library/official-images/blob/master/library/irssi)
+in the [`docker-library/official-images` GitHub
+repo](https://github.com/docker-library/official-images).
+
+# What is irssi?
+
+Irssi is a terminal based IRC client for UNIX systems. It also supports SILC
+and ICB protocols via plugins. Some people refer to it as 'the client of the
+future'.
+
+> [irssi.org](http://irssi.org)
+
+![logo](https://raw.githubusercontent.com/docker-library/docs/master/irssi/logo.png)
+
+# How to use this image
+
+Since no two users of irssi are likely to configure it exactly alike, this
+image does not come with any default configuration.
+
+Please refer to [upstream's excellent (and comprehensive)
+documentation](http://irssi.org/documentation) on the subject of
+configuring irssi for your needs.
+
+Be sure to also checkout the [awesome
+scripts](https://github.com/irssi/scripts.irssi.org) you can download to
+customize your irssi configuration.
+
+## Directly via bind mount
+
+    docker run -it --name my-running-irssi -e TERM \
+        -u $(id -u):$(id -g) -v $HOME/.irssi:/home/user/.irssi:ro \
+        -v /etc/localtime:/etc/localtime:ro \
+        irssi
+
+    # in Docker 1.5 you can use the --read-only flag
+    docker run -it --name my-running-irssi -e TERM \
+        -u $(id -u):$(id -g) -v $HOME/.irssi:/home/user/.irssi --read-only \
+        -v /etc/localtime:/etc/localtime \
+        irssi
+
+# License
+
+View [license information](https://github.com/irssi/irssi/blob/master/COPYING) for
+the software contained in this image.
+
+# Supported Docker versions
+
+This image is officially supported on Docker version 1.4.1.
+
+Support for older versions (down to 1.0) is provided on a best-effort basis.
+
+# User Feedback
+
+## Issues
+
+If you have any problems with or questions about this image, please contact us
+ through a [GitHub issue](https://github.com/jfrazelle/irssi/issues).
+
+You can also reach many of the official image maintainers via the
+`#docker-library` IRC channel on [Freenode](https://freenode.net).
+
+## Contributing
+
+You are invited to contribute new features, fixes, or updates, large or small;
+we are always thrilled to receive pull requests, and do our best to process them
+as fast as we can.
+
+Before you start to code, we recommend discussing your plans 
+through a [GitHub issue](https://github.com/jfrazelle/irssi/issues), especially for more ambitious
+contributions. This gives other contributors a chance to point you in the right
+direction, give you feedback on your design, and help you find out if someone
+else is working on the same thing.

irssi/content.md

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+# What is irssi?
+
+Irssi is a terminal based IRC client for UNIX systems. It also supports SILC
+and ICB protocols via plugins. Some people refer to it as 'the client of the
+future'.
+
+> [irssi.org](http://irssi.org)
+
+%%LOGO%%
+
+# How to use this image
+
+Since no two users of irssi are likely to configure it exactly alike, this
+image does not come with any default configuration.
+
+Please refer to [upstream's excellent (and comprehensive)
+documentation](http://irssi.org/documentation) on the subject of
+configuring irssi for your needs.
+
+Be sure to also checkout the [awesome
+scripts](https://github.com/irssi/scripts.irssi.org) you can download to
+customize your irssi configuration.
+
+## Directly via bind mount
+
+    docker run -it --name my-running-irssi -e TERM \
+        -u $(id -u):$(id -g) -v $HOME/.irssi:/home/user/.irssi:ro \
+        -v /etc/localtime:/etc/localtime:ro \
+        irssi
+
+    # in Docker 1.5 you can use the --read-only flag
+    docker run -it --name my-running-irssi -e TERM \
+        -u $(id -u):$(id -g) -v $HOME/.irssi:/home/user/.irssi --read-only \
+        -v /etc/localtime:/etc/localtime \
+        irssi
+

irssi/license.md

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+View [license information](https://github.com/irssi/irssi/blob/master/COPYING) for
+the software contained in this image.

update.sh

@@ -33,6 +33,7 @@ declare -A otherRepos=(
 	[hipache]='https://github.com/dotcloud/hipache'
 	[hylang]='https://github.com/hylang/hy'
 	[iojs]='https://github.com/iojs/docker-iojs'
+	[irssi]='https://github.com/jfrazelle/irssi'
 	[jenkins]='https://github.com/cloudbees/jenkins-ci.org-docker'
 	[jruby]='https://github.com/cpuguy83/docker-jruby'
 	[mageia]='https://github.com/juanluisbaptiste/docker-brew-mageia'