Update extension presentation guidelines

labs/labs06_material/presentation.md

 ## Compiler Extension Presentation Instructions
 
-Background presentations will take place in week 14. We strongly
-recommend that you pre-record your presentation. **[You should upload
-your talk on SwitchTube](https://tube.switch.ch/channels/c1d660a4)**
-(the precise channel will be linked here soon). However, if you prefer,
-you can also live stream your presentation, but in that case you are
-responsible if the presentation does not reach your audience due to
-network quality issues.
+Background presentations will take place in week 14. 
 
 **The presentation should be 10 minutes long.**
 
 **Q&A session of 5-10 minutes** will follow right after the
-presentation. Please make sure at least one of you is available for the
-entire 20 minute slot.
-
-**We would like each member of the group to be part of the
-presentation.**
+presentation. 
 
 Shortly after, you will receive feedback from us regarding the content
 of your presentation, as well as some general feedback on the form.
@@ -51,59 +41,3 @@ breaking physical objects or referring to supernatural beings in your
 video is not required. Use your own judgment and strike a balance in
 being comfortable with what and how you are saying things and trying out
 these pieces of advice.
-
-### Instructions for video (recording or streaming)
-
-We suggest that the speaker\'s video shows up when the speaker starts to
-speak, so that the audience can relate and identify the speaker.
-Afterwards, the video can be turned off and should come back on for
-questions and answers. Optionally, a small video can stay on throughout
-the presentation. The main content of the presentation should be a
-window showing the material being presented, for example as a PDF to
-which you can point to and/or annotate it. If the hardware allows you,
-you can also use a tablet to simulate a blackboard presentation where
-you write down everything you present, or use a combination or simple
-slides and a strategy of what you will write on them.
-
-**Video upload:** [please upload your video to this
-channel](https://tube.switch.ch/channels/c1d660a4) (login with EPFL
-credentials)
-
-### Viktor\'s recording setup
-
-For your information and not as a requirement, Viktor\'s lectures are
-prepared using this hardware and software setup on Ubuntu 20 OS:
-
--   slides prepared using the \`beamer\` latex package
--   slides annotated using \`xournal\` PDF annotator in full screen mode
-    on display size 1920x1080
--   recording using Zoom, with the following options:
-    -   screen sharing PDF annotator (\`xournal\`), **without** option
-        to optimize for full-screen viewing
-    -   local recording, with option **Optimize for 3rd party video
-        editor**
--   wacom cintiq pro display as external monitor for annotating PDF\'s
-    using pen
--   video segments are cut and assembled using ffmpeg, which works very
-    fast:
-    -   cut like this:
-
-```{=html}
-<!-- -->
-```
-    fmpeg -i zoom_0.mp4 -ss 00:00:00 -to 00:02:03.00 -c copy mysegment01.mp4
-
-      * concatenate like this:
-
-    ffmpeg -f concat -i segmentlist.txt -c copy mycombinedvideo.mp4
-
-where segmentlist.txt is a file containing one line per each file to
-include:
-
-    file 'mysegment01.mp4'
-    file 'mysegment02.mp4'
-    file 'mysegment03.mp4'
-
-Alternatively, you can also use \`obs\` open source software. For
-recording, under advanced options, you may wish to choose a 1 second key
-frame interval to make cutting the video with ffmpeg work well.

labs/labs_06.md

@@ -65,7 +65,7 @@ how to present your project can be found here.](labs06_material/presentation.md)
 
 ## Project Implementation and Report
 
-**Deadline: Jan 7th 2021 23h00**
+**Deadline: TBD**
 
 Your implementation and a report are due on this date, and both will be
 delivered using Git. You will develop your project on top of your