update redirected link

Author: vivienlacourba

index.md

@@ -149,7 +149,7 @@ toc: true
 ## Chair Training Modules {#training}
 
 - [Using GitHub for W3C Specifications](https://www.w3.org/2015/Talks/1217-github-w3c/), Philippe Le Hégaret, 17 December 2015 ([Minutes](https://www.w3.org/2015/12/17-git-minutes)).
-- [Horizontal Review](https://lists.w3.org/Archives/Member/chairs/2015OctDec/0020.html) *(Member-only)*, Virginie Galindo, 13 October 2015 ([Minutes](https://www.w3.org/2015/10/13-chairing-minutes.html), [recording](https://media.w3.org/2015/10/chair-training-horizontal-review.ogg)) and 20 October 2015 ([Minutes](https://www.w3.org/2015/10/20-chairing-minutes.html)) [slides in PPT](https://www.w3.org/2015/10/W3C-transversal-review-101_13OCT2015.pptx), [slides in PDF](https://www.w3.org/2015/10/W3C-transversal-review-101_13OCT2015.pdf) - See also [Blog post](https://www.w3.org/blog/2015/11/better-specifications-for-the-sake-of-the-web/) for keeping your reviewer on track.
+- [Horizontal Review](https://lists.w3.org/Archives/Member/chairs/2015OctDec/0020.html) *(Member-only)*, Virginie Galindo, 13 October 2015 ([Minutes](https://www.w3.org/2015/10/13-chairing-minutes.html), [recording](https://media.w3.org/2015/10/chair-training-horizontal-review.ogg)) and 20 October 2015 ([Minutes](https://www.w3.org/2015/10/20-chairing-minutes.html)) [slides in PPT](https://www.w3.org/2015/10/W3C-transversal-review-101_13OCT2015.pptx), [slides in PDF](https://www.w3.org/2015/10/W3C-transversal-review-101_13OCT2015.pdf) - See also [Blog post](https://www.w3.org/blog/2015/better-specifications-for-the-sake-of-the-web/) for keeping your reviewer on track.
 - [Focus and Productivity](https://lists.w3.org/Archives/Member/chairs/2015JanMar/0009.html) *(Member-only)*, Arnaud Le Hors, 29 January 2015 ([minutes](https://www.w3.org/2015/01/29-chairing-minutes.html), [recording](https://media.w3.org/2015/01/chair-training-session-4.ogg))
 - [Focus and Productivity](https://lists.w3.org/Archives/Member/chairs/2014OctDec/att-0093/Chair_Training_-_Productivity_20141021.pdf) *(Member-only)*, Arnaud Le Hors, 23 October 2014 ([minutes](https://www.w3.org/2014/10/23-chairing-minutes))
 - [The Human Dimension](https://lists.w3.org/Archives/Member/chairs/2014AprJun/0136.html) *(Member-only)*, Charles McCathie Nevile, 17 June 2014 ([minutes](https://www.w3.org/2014/06/17-chairing-minutes.html))