[css-fonts-4][editorial] Fixed a few more Bikeshed warnings related to images

Author: SebastianZ

css-fonts-4/Overview.bs

@@ -418,7 +418,7 @@ Relationship Between Faces and Families
 		For example, given the availability of the fonts below,
 		Futura would match but Futura Medium would not:
 		<figure>
-			<img alt="family and face names" src="images/familyvsfacename.png">
+			<img alt="family and face names" src="images/familyvsfacename.png" width="597" height="151">
 			<figcaption>Family and individual face names</figcaption>
 		</figure>
 	</div>
@@ -506,7 +506,7 @@ Generic font families</h4>
 			used for all content.
 
 			<figure>
-				<img alt="sample serif fonts" src="images/serifexamples.png" >
+				<img alt="sample serif fonts" src="images/serifexamples.png" width="586" height="110">
 				<figcaption>Sample serif fonts</figcaption>
 			</figure>
 
@@ -534,7 +534,7 @@ Generic font families</h4>
 			used for all content.
 
 			<figure>
-				<img alt="sample sans-serif fonts" src="images/sansserifexamples.png" >
+				<img alt="sample sans-serif fonts" src="images/sansserifexamples.png" width="621" height="117">
 				<figcaption>Sample sans-serif fonts</figcaption>
 			</figure>
 
@@ -546,7 +546,7 @@ Generic font families</h4>
 			although other names such as Chancery, Brush, Swing and Script are also used in font names.
 
 			<figure>
-				<img alt="sample cursive fonts" src="images/cursiveexamples.png" >
+				<img alt="sample cursive fonts" src="images/cursiveexamples.png" width="493" height="150">
 				<figcaption>Sample cursive fonts</figcaption>
 			</figure>
 
@@ -557,7 +557,7 @@ Generic font families</h4>
 			These do not include Pi or Picture fonts which do not represent actual characters.
 
 			<figure>
-				<img alt="sample fantasy fonts" src="images/fantasyexamples.png" >
+				<img alt="sample fantasy fonts" src="images/fantasyexamples.png" width="763" height="114">
 				<figcaption>Sample fantasy fonts</figcaption>
 			</figure>
 
@@ -573,7 +573,7 @@ Generic font families</h4>
 			used for all content.
 
 			<figure>
-				<img alt="sample monospace fonts" src="images/monospaceexamples.png" >
+				<img alt="sample monospace fonts" src="images/monospaceexamples.png" width="608" height="102">
 				<figcaption>Sample monospace fonts</figcaption>
 			</figure>
 
@@ -705,7 +705,7 @@ Generic font families</h4>
 			but if it does, that font will be in âksâr mul style.
 
 			<figure>
-				<img style="width:30vw" alt="" src="images/vi-tu-comparison.png">
+				<img style="width:30vw" alt="" src="images/vi-tu-comparison.png" width="512" height="625">
 				<figcaption>Cambodian text displayed in:
 					(top) âksâr chôr style, set in Khmer OS Battambang;
 					(center) âksâr mul style, set in Khmer OS Moul v6, with no ligatures;