Made changes from Closed, Abandoned PRs (9118 & 9123)

Author: Barny Shergold

src/guides/v2.3/graphql/queries/customer.md

@@ -66,7 +66,7 @@ The following call returns information about the logged-in customer. Provide the
          "region": {
            "region_code": "MI",
            "region": "Michigan"
-         }
+         },
          "postcode": "78758",
          "country_code": "US",
          "telephone": "512 555-1212"

src/guides/v2.3/javascript-dev-guide/widgets/widget_collapsible.md

@@ -295,7 +295,7 @@ $("#element").collapsible("option","header",".header");
 ```
 
 ### `icons` {#fedg_collaps_icons}
-The classes for icons to be used in headers. If no classes are specified, icons are not be created. A new span is created and appended to the header, the classes for this span are automatically changed whenever the content gets expanded/collapsed.
+The classes for icons to be used in headers. If no classes are specified, icons are not be created. A new span is created and prepended to the header, the classes for this span are automatically changed whenever the content gets expanded/collapsed.
 
 **Type**: String
 

src/guides/v2.4/graphql/queries/customer.md

@@ -64,7 +64,7 @@ The following call returns information about the logged-in customer. Provide the
          "region": {
            "region_code": "MI",
            "region": "Michigan"
-         }
+         },
          "postcode": "78758",
          "country_code": "US",
          "telephone": "512 555-1212"