diff --git a/docs/slides.html b/docs/slides.html
index a7f83da..d9df259 100644
--- a/docs/slides.html
+++ b/docs/slides.html
@@ -24,28 +24,23 @@
 
 # Who are you?
 
-Go to https://hackmd.io/MsRlxUUqQVKtyt_dNoInBg?both
+Go to https://hackmd.io/GaohdyaETeuUAI1F8sjXPw?both
 
-<iframe src="https://hackmd.io/MsRlxUUqQVKtyt_dNoInBg?both" height="400px" width="800px"></iframe>
+<iframe src="https://hackmd.io/GaohdyaETeuUAI1F8sjXPw?both" height="400px" width="800px"></iframe>
 
 ---
 
 ### Joris Van den Bossche
 
-<a href="https://twitter.com/jorisvdbossche"><img src="./static/img/icon_twitter.svg" alt="Twitter logo" class="icon"> jorisvdbossche</a>
 <a href="https://github.com/jorisvandenbossche"><img src="./static/img/icon_github.svg" alt="Github logo"  class="icon"> jorisvandenbossche</a>
 
 * Open source software developer and teacher
 * Pandas, GeoPandas, scikit-learn, Apache Arrow
 
-.center[
-![:scale 90%](./static/img/work_joris_1.png)]
-
 ---
 
 ### Stijn Van Hoey
 
-<a href="https://twitter.com/svanhoey"><img src="./static/img/icon_twitter.svg" alt="Twitter logo"> SVanHoey</a>
 <a href="https://github.com/stijnvanhoey"><img src="./static/img/icon_github.svg" alt="Github logo"> stijnvanhoey</a>
 
 * Freelance developer and teacher
@@ -68,15 +63,14 @@
 ---
 class: left, middle
 
-0. Everyone has conda installed and the environment setup? If not, see [1-install-python-and-the-required-python-packages](https://jorisvandenbossche.github.io/DS-python-geospatial/setup.html#1-before-the-course-install-python-and-the-required-python-packages)
-1. Make sure to (re)download ALL the course material, see [2-getting-the-course-materials](https://jorisvandenbossche.github.io/DS-python-geospatial/setup.html#2-first-day-of-the-course-getting-the-course-materials) also if you already did this before.
-2. Next, also do section 3 and 4 of the [setup](https://jorisvandenbossche.github.io/DS-python-geospatial/setup.html#3-first-day-of-the-course-test-your-configuration)
+0. If not already downloaded the course material, installed conda and setup the environment, see [setup instructions section 1 and 2](https://jorisvandenbossche.github.io/DS-python-geospatial/setup.html)
+1. Next, make sure to complete 3 and 4 of the [setup instructions](https://jorisvandenbossche.github.io/DS-python-geospatial/setup.html).
 
-> If you succesfully done 1, 2 and 3, put up your `green sticky note` on your laptop screen..
+> If you succesfully done all steps, put up your `green sticky note` on your laptop screen...
 
 Next:
 
-- Surf to and fill in [the questionnaire](https://hackmd.io/MsRlxUUqQVKtyt_dNoInBg?both)
+- Surf to and fill in [the questionnaire](https://hackmd.io/GaohdyaETeuUAI1F8sjXPw?both)
 - In Jupyter Lab, start with the 'notebooks/00-jupyter_introduction.ipynb'.
 
 > Installation or setup issues? Put up your `red sticky note` on your laptop screen.
@@ -323,8 +317,6 @@
 
 **verde** (https://www.fatiando.org/verde/): interpolating spatial data on regular grids
 
-**rioxarray** (https://github.com/corteva/rioxarray): linking rasterio functionality with xarray
-
 **...**
 
 Check out the [Xarray ecosystem](https://docs.xarray.dev/en/stable/ecosystem.html).
@@ -381,12 +373,10 @@
 
 ### Joris Van den Bossche
 
-<a href="https://twitter.com/jorisvdbossche"><img src="./static/img/icon_twitter.svg" alt="Twitter logo"> jorisvdbossche</a>
 <a href="https://github.com/jorisvandenbossche"><img src="./static/img/icon_github.svg" alt="Github logo"> jorisvandenbossche</a>
 
 ### Stijn Van Hoey
 
-<a href="https://twitter.com/svanhoey"><img src="./static/img/icon_twitter.svg" alt="Twitter logo"> SVanHoey</a>
 <a href="https://github.com/stijnvanhoey"><img src="./static/img/icon_github.svg" alt="Github logo"> stijnvanhoey</a>
 
 </textarea>
diff --git a/docs/static/img/work_stijn_1.png b/docs/static/img/work_stijn_1.png
index 5b61cb9..0146b86 100644
Binary files a/docs/static/img/work_stijn_1.png and b/docs/static/img/work_stijn_1.png differ