Update note

fetch.bs

@@ -7094,10 +7094,9 @@ descendants share a quota of 384 kibibytes. That value is computed as such:
 <var>container</var> given an <a for=/>origin</a> <var>originToNavigateTo</var>:
 
 <p class=note>This is called when <var>container</var> and the document that initiated the
-navigation (the "source document") are <a>same origin</a>. It potentially
-reserves either 64kb or 8kb of quota for the frame, if it is not <a>same origin</a>
-with its parent and the permissions policy allow. It is not observable to the cotnainer document
-whether the reserved quota was used in practice.
+navigation (the "source document") are not <a>same origin</a>. It potentially
+reserves either 64kb or 8kb of quota for the frame, if  the permissions policy allow. It is not
+observable to the cotnainer document whether the reserved quota was used in practice.
 This algorithm assumes that the container's document might delegate quota to the navigated frame,
 and the reserved quota would only apply in that case, and would be ignored if it ends up being
 shared.