[css-text-3] Improve consistency in use of terminology

Align the way intrinsic sizes are referred to with the rest of the spec,
incidentally fixing a bikeshed linking problem.

Author: frivoal

css-text-3/Overview.bs

@@ -782,7 +782,7 @@ Text Processing</h3>
   <p>White space that was not removed or collapsed due to white space processing
     is called <dfn local-lt="preserved">preserved white space</dfn>.
     In general, <a>preserved white space</a> is measured when calculating
-    the <a>intrinsic sizes</a> of text;
+    the intrinsic sizes ([=min-content size=] and [=max-content size=]) of text;
     however <a>preserved white space</a>
     that would be allowed to <a>hang</a> at the end of the line
     (i.e. that preserved by ''pre-wrap'')