[css-text] Fix markup errors

Author: frivoal

css-text-3/Overview.bs

@@ -6390,7 +6390,7 @@ Tracking: the 'letter-spacing' property</h3>
 			<bdo dir=ltr>&lt;p>ab&lt;span>c&#x5d0;&lt;/span>&#x5d1;&#x5d2;&lt;/p></bdo>
 		</pre>
 
-		<p class="ls-ex">a&#x3000;b</span>&#x3000;<span class="color-box">c</span>&#x3000;<span class="color-box">&#x5d0;</span>&#x3000;&#x5d1;&#x3000;&#x5d2;</p>
+		<p class="ls-ex">a&#x3000;b&#x3000;<span class="color-box">c</span>&#x3000;<span class="color-box">&#x5d0;</span>&#x3000;&#x5d1;&#x3000;&#x5d2;</p>
 	</div>
 
 	Letter spacing ignores invisible zero-width formatting characters
@@ -6963,7 +6963,7 @@ First Line Indentation: the 'text-indent' property</h3>
 	when specified on a block element, it will affect descendant
 	inline-block elements.
 	For this reason, it is often wise to specify ''text-indent: 0'' on
-	elements that are specified ''display: inline-block''.</p>
+	elements that are specified ''display: inline-block''.
 
 <h3 id="hanging">
 Hanging Glyphs</h3>
@@ -7103,7 +7103,7 @@ Hanging Punctuation: the 'hanging-punctuation' property</h4>
 	at the start or at the end of a line of text.
 
 	Note: If there is not sufficient padding on the
-	block container, 'hanging-punctuation' can trigger overflow.</p>
+	block container, 'hanging-punctuation' can trigger overflow.
 
 	Values have the following meanings: