[css-tables-3] Fix spurious / in <img>

Author: alkorlos

css-tables-3/Overview.bs

@@ -150,7 +150,7 @@ spec:css-sizing-3; type:property; text:box-sizing
 	</style>
 
 	<figure>
-		<img alt="[see-caption-below]" src="images/table-structure.png" width=493 />
+		<img alt="[see-caption-below]" src="images/table-structure.png" width=493>
 		<figcaption>Two representations of the structure of a table (tree vs layout)</figcaption>
 	</figure>
 
@@ -632,7 +632,7 @@ spec:css-sizing-3; type:property; text:box-sizing
 				The following schema describes the algorithm in a different way,
 					to make it easier to understand.
 			</p>
-			<img alt="[see-caption-below]" src="images/CSS-Tables-Layout-Merged.svg" style="width: 100%" />
+			<img alt="[see-caption-below]" src="images/CSS-Tables-Layout-Merged.svg" style="width: 100%">
 			<figcaption>Overview of the table layout algorithm. Not normative.</figcaption>
 		</figure>
 
@@ -2912,7 +2912,7 @@ With a table-internal box as non-containing block parent</h3>
 		The same applies for footer rows and the table bottom border.
 
 		<figure>
-			<img alt="[see-caption-below]" src="./images/CSS-Tables-Repeating-Headers.svg" style="width:100%; max-width: 500px;" />
+			<img alt="[see-caption-below]" src="./images/CSS-Tables-Repeating-Headers.svg" style="width:100%; max-width: 500px;">
 			<figcaption>Expected rendering of table with headers and footers fragmented across two pages</figcaption>
 		</figure>