Fix ambiguous references (#117)

index.bs

@@ -158,7 +158,7 @@ The {{LargestContentfulPaint/url}} attribute must return the value of <a>this</a
 
 The {{LargestContentfulPaint/element}} attribute's getter must return the value returned by running the <a>get an element</a> algorithm with <a>element</a> and null as inputs.
 
-Note: The above algorithm defines that an element that is no longer <a>descendant</a> of the {{Document}} will no longer be returned by {{LargestContentfulPaint/element}}'s attribute getter, including elements that are inside a shadow DOM.
+Note: The above algorithm defines that an element that is no longer a [=tree/descendant=] of the {{Document}} will no longer be returned by {{LargestContentfulPaint/element}}'s attribute getter, including elements that are inside a shadow DOM.
 
 This specification also extends {{Document}} by adding to it a <dfn>largest contentful paint size</dfn> concept, initially set to 0.
 It also adds an associated <dfn>content set</dfn>, which is initially an empty <a spec=infra for=/>set</a>. The [=content set=] will be filled with ({{Element}}, {{Request}}) <a>tuples</a>. This is used for performance, to enable the algorithm to only consider each content once.
@@ -255,7 +255,7 @@ Modifications to the DOM specification {#sec-modifications-DOM}
 
     Right after step 1, we add the following step:
 
-    * If |target|'s [=relevant global object=] is a {{Window}} object, <var ignore>event</var>'s {{Event/type}} is {{scroll}} and its {{Event/isTrusted}} is true, set |target|'s [=relevant global object=]'s [=has dispatched scroll event=] to true.
+    * If |target|'s [=relevant global object=] is a {{Window}} object, <var ignore>event</var>'s {{Event/type}} is {{Document/scroll}} and its {{Event/isTrusted}} is true, set |target|'s [=relevant global object=]'s [=has dispatched scroll event=] to true.
 </div>
 
 Modifications to the HTML specification {#sec-modifications-HTML}