add figs

UrumbotXY-Fall2022/README.md

@@ -33,11 +33,9 @@ Complete Bill of Materials (BOM) [here](https://docs.google.com/spreadsheets/d/1
 
 y-plate top (left) and bottom. (right)<br>
 
-<img src=img/y_double_side.jpg width=300>
-<img src=img/y_single_side.jpg width=300><br>
-
+<img src=img/double_detail.png width=300>
 <img src=img/adjuster_detail.png width=300>
-<img src=img/double_detail.png width=300><br>
+<br>
 
 y_plate: two-bearing side (left), and one-bearing side with adjuster (right).<br>