fix shaders format

data/shaders/bake-uv.glsl

@@ -1,10 +1,13 @@
 [[vertex]]
+
 uniform mat4 mvp;
+
 in vec4 pos;
 in vec3 nor;
 in vec2 uvs;
 out vec3 n;
 out vec3 p;
+
 void main()
 {
     n = nor;
@@ -13,10 +16,13 @@ void main()
 }
 
 [[fragment]]
+
 uniform int mode;
+
 in highp vec3 n;
 in highp vec3 p;
 out highp vec3 frag;
+
 void main()
 {
     switch(mode)