Add matomo documentation

Author: pierreozoux

matomo/README-short.txt

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+Matomo is the leading open-source analytics platform that gives you more than powerful analytics.

matomo/content.md

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+# Matomo (formerly Piwik)
+
+[![Build Status](https://travis-ci.org/matomo-org/docker.svg?branch=master)](https://travis-ci.org/matomo-org/docker) [Matomo](https://matomo.org/) (formerly Piwik) is the leading open-source analytics platform that gives you more than just powerful analytics:
+
+-	Free open-source software
+-	100% data ownership
+-	User privacy protection
+-	User-centric insights
+-	Customisable and extensible
+
+%%LOGO%%
+
+## Usage
+
+In keeping with a 'pure' micro-services approach, this image runs a Matomo service only (in the form of FastCGI). Because of that it **must** be used with companion containers which provide a database for data storage and HTTP to FastCGI proxy/translation services for the user interface.
+
+## Runtime
+
+You can run the Matomo container and service like so:
+
+```console
+docker run -d --link some-mysql:db matomo
+```
+
+This assumes you've already launched a suitable MySQL or MariaDB database container.
+
+You'll now need to use a suitable reverse proxy to access the user interface; which is available on TCP port 9000. Nginx provides the necessary functions for translation between HTTP and FastCGI.
+
+## Matomo Installation
+
+Once you're up and running, you'll arrive at the configuration wizard page. If you're using the compose file, at the `Database Setup` step, please enter the following:
+
+-	Database Server: `db`
+-	Login: `root`
+-	Password: MYSQL_ROOT_PASSWORD
+-	Database Name: piwik (or you can choose)
+
+And leave the rest as default.
+
+Then you can continue the installation with the super user.
+
+## Docker-compose examples and log import instructions
+
+A minimal set-up using docker-compose is available in the [.examples folder](https://github.com/matomo-org/docker/tree/master/.examples).
+
+If you want to use the import logs script, you can then run the following container as needed, in order to execute the python import logs script:
+
+```console
+docker run --rm --volumes-from="matomo_app_1" --link matomo_app_1 python:2-alpine python /var/www/html/misc/log-analytics/import_logs.py --url=http://ip.of.your.piwik --login=yourlogin --password=yourpassword --idsite=1 --recorders=4 /var/www/html/logs/access.log
+```
+
+## Contribute
+
+Pull requests are very welcome!
+
+We'd love to hear your feedback and suggestions in the issue tracker: [github.com/motomo-org/docker/issues](https://github.com/matomo-org/docker/issues).
+
+## GeoIP
+
+This product includes GeoLite data created by MaxMind, available from [http://www.maxmind.com](http://www.maxmind.com).

matomo/github-repo

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+https://github.com/matomo-org/docker

matomo/license.md

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+View [license information](https://github.com/matomo-org/matomo/blob/master/LEGALNOTICE) for the software contained in this image.

matomo/logo.png

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+[Matomo](%%GITHUB-REPO%%) (a Matomo community contributor)