Added warning for unfinished documentation

README.md

@@ -3,6 +3,14 @@
   <img src="https://github.com/florianL21/LED-ClockShelf/blob/master/doc/images/Animation.gif?raw=true" alt="Animation example"/>
 </p>
 
+------------------
+
+ATTENTION: You are looking at version 2.0 of the project. Documentation for this version is still a Work In Progress!
+For Version 1.0 take a look at [this snapshot branch](https://github.com/florianL21/LED-ClockShelf/tree/Snapshot-v1)
+You wil also find the original version of the documentation there.
+
+------------------
+
 This is the software of a variation of the LED clock from [DIY Machines](https://www.instructables.com/id/How-to-Build-a-Giant-Hidden-Shelf-Edge-Clock/)
 A configuration which works on the original version of the clock is also part of the source code.
 
@@ -14,7 +22,7 @@ Further animations can be easily added and existing animation can be adjusted to
 
 The whole codebase is highly modular and configurable and can be tweaked exactly to your preferences.
 
-Detailed documentation is available on the [Wiki.](https://giant-led-clock.readthedocs.io/)
+Detailed documentation is available on [read the docs.](https://giant-led-clock.readthedocs.io/)
 
 If you are interested in my variation of the design which uses a lot of wood instead of the 3D prints and is a bit bigger than the original you can find it on [thingiverse here](https://www.thingiverse.com/thing:4352352)