[css-anchor-position-1] Fix typos

Author: fantasai

css-position-3/Overview.bs

@@ -1736,8 +1736,7 @@ Acknowledgments</h2>
 	* Defined the [=initial fixed containing block=] and its relationship to the [=initial containing block=],
 		to give this concept a name.
 
-	See also <a href="https://www.w3.org/TR/2025/WD-css-position-3-20250311/#changes
-">Previous Changes</a>.
+	See also <a href="https://www.w3.org/TR/2025/WD-css-position-3-20250311/#changes">Previous Changes</a>.
 
 <h2 class=no-num id=privacy>
 Privacy Considerations</h2>