Add config/docker folder, add README.md and an example mysql.env file there

config/docker/README.md

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+## How to set-up the Docker database
+
+
+First, open `config/docker/mysql.env.example`, open in notepad or N++, change all the values to something else ~~or don't if you are lazy~~ for security sake.
+
+Then proceed to save the changed version to `mysql.env` and save it in the same directory as the `mysql.env.example` file.
+
+In order to get docker to use the database, it's suggested to change the `config/dbconfig.txt` to include the values in `.env` file, to do this, use the hostname `db` as host!
+
+### Example for `config/dbconfig.txt`:
+
+```
+# MySQL Connection Configuration
+
+# Server the MySQL database can be found at
+# Examples: localhost, 200.135.5.43, www.mysqldb.com, etc.
+ADDRESS db
+
+# MySQL server port (default is 3306)
+PORT 3306
+
+# Database the population, death, karma, etc. tables may be found in
+DATABASE virgo
+
+# Username/Login used to access the database
+LOGIN sillyusername
+
+# Password used to access the database
+PASSWORD somekindofpassword
+
+# The following information is for feedback tracking via the blackbox server
+FEEDBACK_DATABASE test
+FEEDBACK_LOGIN mylogin
+FEEDBACK_PASSWORD mypassword
+
+# Track population and death statistics
+# Comment this out to disable
+#ENABLE_STAT_TRACKING
+```

config/docker/mysql.env.example

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+# MySQL database root password
+db_password=SUPERSEKRETOMYGOD
+# MySQL database name
+db_name=virgo
+# MySQL login username
+dbuser_username=sillyusername
+# MySQL login password
+dbuser_password=somekindofpassword