relnotes: Note support for viewport arrays on i965/Gen6.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
diff --git a/docs/relnotes/10.6.0.html b/docs/relnotes/10.6.0.html
index 6c5bc8c..fb1a928 100644
--- a/docs/relnotes/10.6.0.html
+++ b/docs/relnotes/10.6.0.html
@@ -57,6 +57,7 @@
 <li>GL_ARB_program_interface_query (all drivers)</li>
 <li>GL_ARB_texture_stencil8 on nv50, nvc0, r600, radeonsi, softpipe</li>
 <li>GL_ARB_uniform_buffer_object on freedreno</li>
+<li>GL_ARB_viewport_array, GL_AMD_vertex_shader_viewport_index on i965/gen6</li>
 <li>GL_EXT_draw_buffers2 on freedreno</li>
 <li>GL_OES_EGL_sync on all drivers</li>
 <li>EGL_KHR_fence_sync on freedreno, nv50, nvc0, r600, radeonsi</li>