Add video for week 9

index.md

@@ -46,7 +46,7 @@ Moodle | Quizzes, Final Exam [[link](https://moodle.epfl.ch/course/view.php?id=4
 | 6    | 17/10     |                             | Document Classification | [[slides][6p], [video][6v]] |
 | 7    | 31/10     |                             | Transformers | [[video][7v]] |
 | 8    | 7/11      | Information Extraction      | Link Ranking, Graph Mining | [[slides][8p], [video][8v]] |
-| 9    | 14/11     |                             | Named Entity Recognition | [[slides][9p]]|
+| 9    | 14/11     |                             | Named Entity Recognition | [[slides][9p], [video][9v]]|
 | 10   | 21/11     |                             | Knowledge Representation | |
 | 11   | 28/11     |                             | Information Extraction | |
 | 12   | 05/12     |                             | Knowledge Inferences | |
@@ -137,4 +137,4 @@ Please contact us for any organisational questions or questions related to the c
 [6v]:https://mediaspace.epfl.ch/media/DIS+-+Week+6/0_htjlzpdc/29734
 [7v]:https://mediaspace.epfl.ch/media/DIS+-+Transformers/0_y1ac6dme/29734
 [8v]:https://mediaspace.epfl.ch/media/DIS+-+Week+8/0_01ev6mmz/29734
-
+[9v]:https://mediaspace.epfl.ch/media/Week+9/0_r5qoddc6/29734