Initial README.md files for the example repository.

README.md

+# Example repository for the TDT4140 course, Spring 2018
+
+This repository contains templates and examples for the TDT4140 course, for Spring 2018. Currently, it contains two project, both using maven as build system and configured for using Eclipse:
+* [tdt4140-gr18nn](tdt4140-gr18nn/README.md]: Template for JavaFX project with two sub-modules, one for the model and one for the UI. To use the template, copy the whole structure and systematically rename files and edit file contents to match your group number.
+* [tdt4140-gr1800](tdt4140-gr1800/README.md]: Example project based on the template, and extended to include a web server module.

tdt4140-gr1800/README.md

+# Example project for the TDT4140 course, Spring 2018
+
+This project is an example for Spring 2018, based on the [template project](../tdt4140-gr18nn/README.md]

tdt4140-gr18nn/README.md

+# Template project for the TDT4140 course, Spring 2018
+
+This is a template for a JavaFX project with two sub-modules, one for the model and one for the UI. To use the template, copy the whole structure and systematically rename files and edit file contents to match your group number.