fixed markdown tables.

src/SharpGLTF.Toolkit/Geometry/VertexTypes/readme.md

@@ -16,7 +16,7 @@ a full vertex in a vertex buffer.
 The table below shows the possible combinations:
 
 |Position|Material|Skinning _(maxBones×weights)_|
-|-|
+|-|-|-|
 |Position|Empty|Empty|
 |Position Normal|Color0|256 ×4
 |Position Normal Tangent|Texture0|256 ×8

src/SharpGLTF.Toolkit/Materials/readme.md

@@ -16,7 +16,7 @@ Each channel has a Texture, and a Vector4<X,Y,Z,W> parameter, where every
 element has a different meaning, depending on the kind of channel:
 
 |Channel|Shader Style|X|Y|Z|W|
-|-|
+|-|-|-|-|-|-|
 |Normal|All|Scale
 |Occlussion|All|Strength
 |Emissive|All|Red|Green|Blue