Add Documentation/CodeOverview.md

Documentation/CodeOverview.md

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+# Code: Overview
+
+## Getting started
+Most developers probably only want to get their hands on the game-logic component.
+
+In Nuclide we have 3 main modules supplied to the engine:
+
+- **Client**
+- **Server**
+- **Menu**
+
+When we build these with the **fteqcc** compiler, we will get three files:
+
+- csprogs.dat
+- progs.dat
+- menu.dat
+
+In the source code tree of Nuclide itself, you'll find all the core entry functions that
+the engine calls in a file called `entry.qc` which exists in each sub-module its directory.
+
+However, you probably don't want to modify the Nuclide `./src/...` tree directly (unless you got a good reason) and want to focus on your own tree.
+
+A minimal basis you can copy and paste can be found under `./base/` which implements a very minimal game. You can walk around, jump and even shoot a projectile or two.
+
+This is an example codebase implementing the minimum required to get going with Nuclide.
+So make a copy of it and play around there to get a feel for what you can do.
+
+There are some other example games, such as **FreeHL** which you may want to look at too. Some games (usually not provided by us) have a different **license** so watch out as you don't want to step on anyones toes.
+
+However if it's provided by us (**Vera Visions, L.L.C.**) then you can usually assume it's under some sort of **free license**. Wouldn't hurt to check however.
+
+## Example: Base
+
+To be written.
+
+