add figs

UrumbotXY-Fall2022/README.md

@@ -31,12 +31,12 @@ Complete Bill of Materials (BOM) [here](https://docs.google.com/spreadsheets/d/1
 <img src=img/y_plate_single.jpg width=300>
 <img src=img/y_plate_tab.jpg width=300><br>
 
-y-plate top:  single bearing side (left) and tab side, with stack of bearings. (right)<br>
+y-plate from the top:  single bearing side (left) and tab side, with stack of bearings. (right)<br>
 
 <img src=img/adjuster_detail.png width=300>
 <img src=img/double_detail.png width=300>
 
-y_plate: single-bearing side with adjuster (left), and two-bearing side.(right).<br>
+y_plate: single-bearing side with adjuster (left), and two-bearing side (right).<br>
 
 
 ### Assemble xy-plate and table