Add missing method reference in ShaderMaterial.set_shader_parameter documentation

[MadeScientist]

Reference:

godot/doc/classes/CanvasItem.xml

Line 619 in 3b48b01

Set the value of a shader uniform for this instance only ([url=$DOCS_URL/tutorials/shaders/shader_reference/shading_language.html#per-instance-uniforms]per-instance uniform[/url]). See also [method ShaderMaterial.set_shader_parameter] to assign a uniform on all instances using the same [ShaderMaterial].

godot/doc/classes/GeometryInstance3D.xml

Line 25 in 3b48b01

Set the value of a shader uniform for this instance only ([url=$DOCS_URL/tutorials/shaders/shader_reference/shading_language.html#per-instance-uniforms]per-instance uniform[/url]). See also [method ShaderMaterial.set_shader_parameter] to assign a uniform on all instances using the same [ShaderMaterial].

[lyuma]

I approve of this simple but helpful doc change.

Directing people to CanvasItem.set_instance_shader_parameter is good for performance

[akien-mga]

Thanks!

[MadeScientist]

Thank you!