Update file week07.md

docs/assignments/week07.md

@@ -80,11 +80,9 @@ I mainly used this software for slicing this week, the infill selection offers v
 
 ## **3D PRINTING**
 
-### **3D PRINTER**
+### **3D PRINTERS**
 
-**BEFORE YOU START**
-
-Remember to clean the bed with glass spray, cut the filament sharp, and extrude the filament until it's the right colour.
+**BEFORE YOU START** Remember to clean the bed with glass spray, cut the filament sharp, and extrude the filament until it's the right colour.
 
 ![printer](../images/week07/printer1.jpg){ width=1000}