Trim the trailing whitespace introduced in 298466e. (#305)

Author: hober

index.bs

@@ -691,14 +691,14 @@ See [[#naming-is-hard]] for general (cross-language) advice on naming.
 
 <h3 id="css-content-should-be-visible">Content should be viewable and accessible by default</h3>
 
-Design CSS properties or CSS layout systems (which are typically values of the `display` property), 
-to preserve the content as viewable, accessible and usable by default.  
+Design CSS properties or CSS layout systems (which are typically values of the `display` property),
+to preserve the content as viewable, accessible and usable by default.
 
 <div class="example">
-For example, the default behavior of all layout systems in CSS will not lead to content being clipped, 
-content overlapping other content, or content being unreachable by scrolling. 
-These things should only happen if CSS features are used that are more explicitly choosing 
-such a behavior (for example, `overflow: hidden` or `left: -40em`). They should not happen by 
+For example, the default behavior of all layout systems in CSS will not lead to content being clipped,
+content overlapping other content, or content being unreachable by scrolling.
+These things should only happen if CSS features are used that are more explicitly choosing
+such a behavior (for example, `overflow: hidden` or `left: -40em`). They should not happen by
 default as a result of something like `display: flex` or `position: relative`.
 </div>
 
@@ -2334,8 +2334,8 @@ instead of blacklist and whitelist,
 and source and replica
 instead of master and slave.
 
-If you need to refer to a generic persona, 
-such as an author or user, 
+If you need to refer to a generic persona,
+such as an author or user,
 use the generic pronoun "they", "their", etc.
 For example, "A user may wish to adjust their preferences".
 <h3 id="naming-future-proofing">Future-proofing</h4>