Add docs/reference split

ErikSchierboom · iHiD · kotp · mirkoperillo · commit 88856c1297c3 · 2021-01-30T15:05:29.000+01:00
* [Docs] Move implementing-a-concept-exercise.md to reference folder
* [Docs] Move reference documents to docs folder
* [Docs] Update to student-facing docs
* [Docs] Add new issue template

Co-Authored-By: Jeremy Walker &lt;jez.walker@gmail.com&gt;
Co-Authored-By: Victor Goff &lt;keeperotphones@gmail.com&gt;
Co-authored-by: Sascha Mann &lt;git@mail.saschamann.eu&gt;
diff --git a/reference/implementing-a-concept-exercise.md b/reference/implementing-a-concept-exercise.md
@@ -0,0 +1,5 @@
+# How to implement an Java concept exercise
+
+TODO: describe how to implement a concept exercise for the Java track. For inspiration, check out the [C# version of this file][csharp-implementing].
+
+[csharp-implementing]: ../../csharp/reference/implementing-a-concept-exercise.md
