Add more links

README.md

@@ -10,3 +10,15 @@ almatrailer2016a.mp4: [ALMA trailer](https://www.eso.org/public/videos/almatrail
 [My own notes on FFMPEG](https://wiki.exu.li/en/other/ffmpeg)  
 
 [Using SVT-AV1 within ffmpeg](https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Docs/Ffmpeg.md)  
+
+## Video Quality
+Some resources on video quality, the VMAF, SSIM and MSE metrics and how they stack up to subjective perception.  
+
+### Stuff I need to check out
+https://streaminglearningcenter.com/learning/mapping-ssim-vmaf-scores-subjective-ratings.html  
+https://streaminglearningcenter.com/encoding/best-practices-for-netflixs-vmaf-metric.html  
+https://medium.com/netflix-techblog/vmaf-the-journey-continues-44b51ee9ed12  
+https://streaminglearningcenter.com/blogs/vmaf-is-hackable-what-now.html  
+https://www.reddit.com/r/ffmpeg/comments/qt01wf/good_vmaf_values_to_target_for_a_reencode/  
+https://audiovideotestlab.com/blog/full-reference-quality-metrics-vmaf-psnr-and-ssim/  
+