Add more instructions (#619)

* Update docs

* Fix

docs/tracks/paths.md

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+@page paths Paths
+The game uses multiple types of track paths
+
+# Track Paths
+Allows CPUs to follow the track and for the game to track player progress
+* Up to fourth track paths are allowed and one vehicle path
+* Average track uses ~800 points. Any number is allowed.
+* For best results, place path points evenly apart spacing each one by around 0.20 blender units
+* The first path point must be placed at (0,0,0)
+
+# Supported Blender paths
+* Bezier Curve
+* Nurbs Path (just called path)
+
+![alt text](image-23.png)
+
+* The nurbs path is the easiest to use.
+* The track path must face positive Y in blender
+
+## Path Type
+This allows the user to select which path is which. Path 1 is required and must be the main path.
+
+The other paths must circle the entire track, splitting off wherever, and are optional.
+
+The vehicle path is for trains, boats, cars, etc.
+
+![alt text](image-24.png)
+
+
+See the overview guide for more details