[css-inline] text changes

Author: dauwhe

css-inline/Overview.bs

@@ -262,7 +262,7 @@ If an initial letter has a descender, it could crash into the (n+1)th line of te
 <p class="caption">Incorrect: three-line initial letter with descender</p>
 </figure>
 
-Text should be excluded around the glyph bounding boxes of the initial letters:
+Text is excluded around the glyph bounding boxes of the initial letters:
 
 
 

css-inline/Overview.html

@@ -338,7 +338,7 @@ <h3 class="heading settled" data-level=2.6 id=initial-letter-exclusions><span cl
 <p class=caption>Incorrect: three-line initial letter with descender</p>
 </figure>
 
-<p>Text should be excluded around the glyph bounding boxes of the initial letters:</p>
+<p>Text is excluded around the glyph bounding boxes of the initial letters:</p>