fix: grammar in layout reference page

docs/en/reference/default-theme-layout.md

@@ -1,6 +1,6 @@
 # Layout
 
-You may choose the page layout by setting `layout` option to the page [frontmatter](./frontmatter-config). There are 3 layout options, `doc`, `page`, and `home`. If nothing is specified, then the page is treated as `doc` page.
+You may choose the page layout by setting the `layout` option to the page [frontmatter](./frontmatter-config). There are 3 layout options, `doc`, `page`, and `home`. If nothing is specified, then the page is treated as a `doc` page.
 
 ```yaml
 ---
@@ -10,9 +10,9 @@ layout: doc
 
 ## Doc Layout
 
-Option `doc` is the default layout and it styles the whole Markdown content into "documentation" look. It works by wrapping whole content within `vp-doc` css class, and applying styles to elements underneath it.
+Option `doc` is the default layout and it styles all the Markdown content into a "documentation" look. It works by wrapping all the content within the `vp-doc` css class, and applying styles to elements underneath it.
 
-Almost all generic elements such as `p`, or `h2` get special styling. Therefore, keep in mind that if you add any custom HTML inside a Markdown content, those will get affected by those styles as well.
+Almost all generic elements such as `p`, or `h2` get special styling. Therefore, keep in mind that if you add any custom HTML inside Markdown content, those will get affected by those styles as well.
 
 It also provides documentation specific features listed below. These features are only enabled in this layout.
 
@@ -23,15 +23,15 @@ It also provides documentation specific features listed below. These features ar
 
 ## Page Layout
 
-Option `page` is treated as "blank page". The Markdown will still be parsed, and all of the [Markdown Extensions](../guide/markdown) work as same as `doc` layout, but it wouldn't get any default stylings.
+Option `page` is treated as a "blank page". The Markdown will still be parsed, and all of the [Markdown Extensions](../guide/markdown) work the same as in a `doc` layout, but it wouldn't get any default stylings.
 
-The page layout will let you style everything by you without VitePress theme affecting the markup. This is useful when you want to create your own custom page.
+The page layout will let you style everything by yourself without the VitePress theme affecting the markup. This is useful when you want to create your own custom page.
 
-Note that even in this layout, sidebar will still show up if the page has a matching sidebar config.
+Note that even in this layout, a sidebar will still show up if the page has a matching sidebar config.
 
 ## Home Layout
 
-Option `home` will generate templated "Homepage". In this layout, you can set extra options such as `hero` and `features` to customize the content further. Please visit [Default Theme: Home Page](./default-theme-home-page) for more details.
+Option `home` will generate a templated "Homepage". In this layout, you can set extra options such as `hero` and `features` to customize the content further. Please visit [Default Theme: Home Page](./default-theme-home-page) for more details.
 
 ## No Layout