GLSL_NV_mesh_shader.txt lacks a figure (figure 3.1)

[Ivanmatthew]

As described at https://github.com/KhronosGroup/GLSL/blob/886df1b2b544ade9076fcf4675f2ecbf2963dd86/extensions/nv/GLSL_NV_mesh_shader.txt#L154-L186 It mentions a figure 3.1, but it doesn't appear anywhere.