fix quadcopters position in projects

input/projects/quadcopters.md

@@ -1,7 +1,7 @@
 title: Flying RC Vehicles
 description: My self-made Quadcopters and other model stuff
 parent: projects
-position: 5
+position: 7
 ---
 
 In the last couple of years I built multiple quadcopters and some other related flying remote-controlled model vehicles.