fixed paths for images (doc for laser cutting)

docs/assignments/week03/group-project/week03-group-project.md

@@ -160,15 +160,15 @@ Using the kerf comb and the kerf box we found that the laser kerf is 0.15 mm.
 
   ![mdf sample board 2](../images/mdf-laser-card.jpeg)
 
-  Josef pointed out that the extra burn marks on some of the letters is related to the curviness of the letters - curvy letters cause the machine to slow down due to acceleration changes and burn more.  
+  Josep pointed out that the extra burn marks on some of the letters is related to the curviness of the letters - curvy letters cause the machine to slow down due to acceleration changes and burn more.  
 
   ![MDF letter burn](../images/letters-burning-speed.jpeg)
 
-  Josef suggested that slowing down the speed of the laser would minimize the variation in letter burn.  We ran out of time to try this.   
+  Josep suggested that slowing down the speed of the laser would minimize the variation in letter burn.  We ran out of time to try this.   
 
   Here are the other boards using different materials made by others in our group:
 
-  ![laser cut boards](../images/three-materials-laser.jpeg)
+  ![](group-templates.jpg)