Fix wording

Author: deccer

docs/1-introduction/1-3-models/1-3-0-overview.md

@@ -18,14 +18,12 @@ At the end we will also be able to roam around freely by using a camera.
 
 [Loading Meshes](1-3-2-loading-meshes.md)
 
-[Depth Buffer](1-3-3-depthstencil-texture.md)
+[Dear ImGui](1-3-3-dear-imgui.md)
 
-[Depth Stencil State](1-3-4-depthstencil-state.md)
+[Depth Buffer](1-3-4-depth-buffer.md)
 
-[Index Buffer](1-3-5-index-buffer.md)
+[Rasterizer State](1-3-5-rasterizer-state.md)
 
-[Coordinate Systems](1-3-6-coordinate-system.md)
+[Coordinate Systems](1-3-6-coordinate-systems.md)
 
-[Constant Buffers](1-3-7-constant-buffer.md)
-
-[Camera](1-3-8-camera.md)
+[Camera](1-3-7-camera.md)