Fix pysal logo link in the slides

jorisvandenbossche · jorisvandenbossche · commit 1d6c11144747 · 2021-06-30T16:22:51.000+02:00
diff --git a/slides.html b/slides.html
@@ -362,7 +362,7 @@
 
 <br>
 
-![:scale 60%](https://pysal.org/assets/pysal_nav_logo.svg)
+![:scale 60%](https://pysal.org/pysal1.png)
 
 Python Spatial Analysis Library (https://pysal.org). Collection of packages for:
 
