Missing articles about linear workflow and sRGB correction

[rdb]

This is an important topic that needs to be covered in the manual; far too much of this topic is tribal knowledge at the moment.

This should cover:

• [ ] Why it's important to be linear
• [ ] How to convert eg. light / material colors from sRGB to linear
• [ ] The fact that vertex colors are still always linear and should be stored as floats
• [ ] How to ensure sRGB is enabled on input textures
• [ ] How to ensure an sRGB framebuffer or postprocessing filter
• [ ] Adjusting light attenuation curves
• [ ] A link to simplepbr might help, too

[anushkrishnav]

Can you Assign it to me I would love to work on this