Apply suggestions from code review

Co-authored-by: Michael Hoffman <v-mihoffman@microsoft.com>

Author: captainbrosset

microsoft-edge/web-platform/release-notes/134.md

@@ -101,7 +101,7 @@ Using this property, webpages that display HDR images can limit their brightness
 
 The customizable `<select>` element allows developers to take complete control of the rendering of the element, by adding the `appearance: base-select` CSS declaration.
 
-This feature currently relies on the `SelectParserRelaxation` flag, which changes the HTML parser to allow more tags within the `<select>` tag.  Sites which include additional tags inside `<select>` which were getting removed before, such as `<span>`s, or are including an extremely large number of `<option>`s may be affected by `SelectParserRelaxation`.
+This feature currently relies on the `SelectParserRelaxation` flag, which changes the HTML parser to allow more tags within the `<select>` tag.  Sites which include additional tags inside `<select>` which were getting removed before, such as `<span>` elements, or are including an extremely large number of `<option>` elements may be affected by `SelectParserRelaxation`.
 
 See [Customizable Select Element (Explainer)](https://open-ui.org/components/customizableselect/).
 
@@ -113,9 +113,9 @@ This feature adds the _light dismiss_ behavior of the Popover API to `<dialog>`
 
 A new `closedby` attribute controls the behavior:
 
-* `<dialog closedby="none">`: no user-triggered closing of dialogs at all.
-* `<dialog closedby="closerequest">`: user pressing ESC (or another close trigger) closes the dialog.
-* `<dialog closedby="any">`: user clicking outside the dialog, or pressing ESC, closes the dialog.  Similar to `popover=auto` behavior.
+* `<dialog closedby="none">`: No user-triggered closing of dialogs at all.
+* `<dialog closedby="closerequest">`: User pressing **Esc** (or another close trigger) closes the dialog.
+* `<dialog closedby="any">`: User clicking outside the dialog, or pressing **Esc**, closes the dialog.  Similar to `popover=auto` behavior.
 
 
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