Change to MyST parser

docs/source/Howto/Starting/Part4/Starting-Part4.md

@@ -1,23 +1,24 @@
 # Evennia Starting Tutorial (Part 4)
 
-```sidebar:: Tutorial Parts
+```{eval-rst}
+sidebar:: Tutorial Parts
 
   Part 1: `What we have <../Part1/Starting-Part1.html>`_
     A tour of Evennia and how to use the tools, including an introduction to Python.
   Part 2: `What we want <../Part2/Starting-Part2.html>`_
     Planning our tutorial game and what to think about when planning your own in the future.
-  Part 3: `How we get there <../Part3/Starting-Part3.html>`_ 
+  Part 3: `How we get there <../Part3/Starting-Part3.html>`_
        Getting down to the meat of extending Evennia to make our game to make a tech-demo
   **Part 4: Using what we created**
     Using the tech-demo and world content to go with our code
   Part 5: `Showing the world <../Part5/Starting-Part5.html>`_
     Taking our new game online and let players try it out
-``` 
+```
 
-We now have the code underpinnings of everything we need. We have also tested the various components 
+We now have the code underpinnings of everything we need. We have also tested the various components
 and has a simple tech-demo to show it all works together. But there is no real coherence to it at this
-point - we need to actually make a world. 
+point - we need to actually make a world.
 In part four we will expand our tech demo into a more full-fledged (if small) game by use of batchcommand
-and batchcode processors. 
+and batchcode processors.
 
-_TODO_
+_TODO_