Update 4 files

- /docs/images/week09/Inflatable1.jpg
- /docs/images/week09/inflatable1.jpg
- /docs/images/week09/inflatable2.jpg
- /docs/assignments/week09.md

docs/assignments/week09.md

@@ -71,7 +71,7 @@ Prepare this recipe [^1] by collecting the ingredients necessary, to be found in
 
 ### **LASERCUTTING TPU**
 
-![INFLATABLE](../images/week09/Inflatable1.jpg){ width=1000}
+![INFLATABLE](../images/week09/inflatable1.jpg){ width=1000}
 
 ![INFLATABLE](../images/week09/inflatable2.jpg){ width=1000}