Fix review comments

index.bs

@@ -4203,11 +4203,11 @@ before any author-defined script have run.
 
 TODO: Extend this to scripts in other kinds of realms.
 
-A [=BiDi session=] has a <dfn>preload script map</dfn> which is a [=/map=] in which
-the keys are [[!RFC4122|UUID]]s, and the values are [=structs=] with an <a
+A [=BiDi session=] has a <dfn>preload script map</dfn> which is a [=/map=] in
+which the keys are [[!RFC4122|UUID]]s, and the values are [=structs=] with an <a
 for=struct>item</a> named <code>function declaration</code>, which is a string,
-<code>arguments</code> which is a list, and an item named <code>sandbox</code>
-which is a string or null.
+<code>arguments</code>, and an item named <code>sandbox</code> which is a string
+or null.
 
 Note: If executing a [=preload script=] fails, either due to a syntax error, or
 a runtime exception, an [[ECMAScript]] exception is reported in the realm in
@@ -4231,8 +4231,6 @@ To <dfn export>run WebDriver BiDi preload scripts</dfn> given |environment setti
        |browsing context|. Otherwise let |realm| be |environment settings|'
        [=realm execution context=]'s Realm component.
 
-    1. Let |options| be the [=default classic script fetch options=].
-
     1. Let |base URL| be the [=API base URL=] of |environment settings|.
 
     1. Let |options| be the [=default classic script fetch options=].