Add note about conds

Author: noamr

fetch.bs

@@ -7084,6 +7084,7 @@ shared.
     <p><a for=list>For each</a> <var>navigable</var> of <var>container</var>'s
     <a>node navigable</a>'s <a for=navigable>top-level traversable</a>'s
     <a>inclusive descendant navigables</a> who meets all of the following conditions:
+
     <ul class=brief>
      <li><p><var>navigable</var> is not <var>container</var>'s <a>content navigable</a>.
 
@@ -7097,6 +7098,9 @@ shared.
 
     <p>Decrement <var>delegatedQuota</var> by <a>minimal subframe deferred-fetch quota</a>.
 
+    <p class=note>This algorithm counts subframes, other than this one, which don't share quota with
+    the top-level document, and have reserved part of the <a>deferred-fetch delegated quota</a>.
+
    <li><p>If <var>delegatedQuota</var> is less than <a>minimal subframe deferred-fetch quota</a>,
    then set <var>container</var>'s <a>reserved deferred-fetch quota</a> to zero.