v3:
- Add mention that AMD display pipeline color-processing block's impact
  on power are negligible in comparison to memory bandwidth and GPU
  power (Sebastian)

v2:
- Add link to README.md (Pekka)
- Make it clear that compositors don't currently do color space conversions.
  Applications will perform their own color space conversion when required,
  such as when playing back HDR videos. (Sebastian)
- Avoid some generalizations about color-managed compositor behavior while
  highlighting that a color-managed compositor will likely have a larger GPU
  and memory bandwidth usage (Pekka)
- Clarify the importance of 3D LUT for high-quality tone-, and gamut-mapping
  (Sebastian)
- Soften language of power-saving implications of RGB 10bpc scanout instead of
  FP16 scanout (Harry)
- Add blurb on de-linearizing content post-blending when needed (Sebastian)
- Use unambiguous language to refer to the display controller, instead of the
  actual display (Pekka)
- Spell out PWL, and TF acronyms when first introduced (Pekka)
- Clarify the de-linearization and linearization performed on drm_plane and
  drm_crtc respectively for the video use case (Pekka)

Signed-off-by: Harry Wentland <harry.wentland@amd.com>