Added new documentation.

Install-Wekan-Docker-on-SUSE-Linux-Enterprise-Server-12-SP1.md

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+Tested to work on AWS cloud:
+
+```
+ec2-user@ip:~> cat /etc/os-release
+NAME="SLES"
+VERSION="12-SP1"
+VERSION_ID="12.1"
+PRETTY_NAME="SUSE Linux Enterprise Server 12 SP1"
+ID="sles"
+ANSI_COLOR="0;32"
+CPE_NAME="cpe:/o:suse:sles:12:sp1"
+```
+
+As root:
+
+1) Install all updates and Docker (recommended):
+
+```
+zypper update
+zypper in docker
+```
+
+2) Start editing textfile to add rights for Docker to access network:
+
+```
+vi /etc/sysconfig/SuSEfirewall2
+```
+
+3) In that textfile change FW_ROUTE line to this and save:
+
+```
+FW_ROUTE="yes"
+```
+
+4) Add rights to use docker as another user, examples: ec2-user, virtual
+
+```
+/usr/sbin/usermod -a -G docker ec2-user
+```
+
+5) Start Docker and enable it on booting
+
+```
+systemctl start docker
+chkconfig docker on
+```
+
+6) Reboot so updates and firewall changes start working:
+
+```
+reboot
+```
+
+7) As normal user (examples: ec2-user, virtual) (root works still too), install MongoDB and Wekan, you can change 8080 to be another port:
+
+```
+docker run -d --restart=always --name wekan-db mongo
+docker run -d --restart=always --name wekan --link "wekan-db:db" -e "MONGO_URL=mongodb://db" -e "ROOT_URL=http://localhost" -p 8080:80 mquandalle/wekan:0.10.0
+```
+
+8) Now Wekan is available at http://ip-address:port , for example: http://192.168.100.50:8080 . Wekan starts at boot, and restarts on error conditions.