review comments

index.bs

@@ -6211,7 +6211,7 @@ only [=list/items=] that are of type |T|.
 
 <h4 id="idl-async-iterable-type" lt="async iterable" dfn export>Async iterable types — async iterable&lt;|T|&gt;</h4>
 
-The <dfn lt="async iterable type" export>async iterable type</dfn> is a parameterized
+An <dfn lt="async iterable type" export>async iterable type</dfn> is a parameterized
 type whose values are references to objects that can produce an asynchronously iterable, possibly infinite,
 sequence of values of type |T|.
 
@@ -8173,7 +8173,7 @@ JavaScript Array values.
 </div>
 
 
-<h4 id="js-async-iterable">Async iterable — async iterable&lt;|T|&gt;</h4>
+<h4 id="js-async-iterable">Async iterables — async iterable&lt;|T|&gt;</h4>
 
 In the JavaScript binding, IDL [=async iterable type|async iterable=] values are represented by
 a [=struct=] with the following [=struct/items=]:
@@ -8211,7 +8211,7 @@ a [=struct=] with the following [=struct/items=]:
 <h5 id="js-async-iterator-iteration">Iterating async iterators</h5>
 
 An [=async iterable=] is not directly iterated over. Instead, it is first opened to create
-a [=async iterator=]. The [=async iterator=] can be asynchronously iterated over to produce values.
+an [=async iterator=]. The [=async iterator=] can be asynchronously iterated over to produce values.
 
 <dfn lt="async iterator" export>Async iterators</dfn> are [=structs=] with the following [=struct/items=]:
 * <dfn for="JS async iterator">underlying record</dfn>, an [=Iterator=] record
@@ -8265,7 +8265,7 @@ a [=async iterator=]. The [=async iterator=] can be asynchronously iterated over
     with a reason |reason|:
 
     1.  Let |iteratorRecord| be |iterator|'s [=JS async iterator/underlying record=].
-    1.  Let |iteratorObj| be |iteratorRecord|.\[[Iterator]]
+    1.  Let |iteratorObj| be |iteratorRecord|.\[[Iterator]].
     1.  Let |returnMethod| be <a abstract-op>GetMethod</a>(|iteratorObj|, "<code>return</code>").
     1.  If |returnMethod| is an abrupt completion, return [=a promise rejected with=]
         |returnMethod|.\[[Value]].