tiny punctuation/conjunction nit fixes

.changeset/tame-flies-confess.md

@@ -4,7 +4,7 @@
 
 Adds a new `build.format` configuration option: 'preserve'. This option will preserve your source structure in the final build.
 
-The existing configuration options, `file` and `directory`, either build all of your HTML pages as files matching the route name (e.g. `/about.html`) or build all your files as `index.html` within a nested directory structure (e.g. `/about/index.html), respectively. It was not previously possible to control the HTML file built on a per-file basis.
+The existing configuration options, `file` and `directory`, either build all of your HTML pages as files matching the route name (e.g. `/about.html`) or build all your files as `index.html` within a nested directory structure (e.g. `/about/index.html`), respectively. It was not previously possible to control the HTML file built on a per-file basis.
 
 One limitation of `build.format: 'file'` is that it cannot create `index.html` files for any individual routes (other than the base path of `/`) while otherwise building named files. Creating explicit index pages within your file structure still generates a file named for the page route (e.g. `src/pages/about/index.astro` builds `/about.html`) when using the `file` configuration option.
 
@@ -15,4 +15,4 @@ The new format will preserve how the filesystem is structured and make sure that
 - `about.astro` becomes `about.html`
 - `about/index.astro` becomes `about/index.html`
 
-See the [`build.format` configuration options reference] for more details
+See the [`build.format` configuration options reference] for more details.

packages/astro/src/@types/astro.ts

@@ -790,7 +790,7 @@ export interface AstroUserConfig {
 		 * Control the output file format of each page. This value may be set by an adapter for you.
 		 *   - `'file'`: Astro will generate an HTML file named for each page route. (e.g. `src/pages/about.astro` and `src/pages/about/index.astro` both build the file `/about.html`)
 		 *   - `'directory'`: Astro will generate a directory with a nested `index.html` file for each page. (e.g. `src/pages/about.astro` and `src/pages/about/index.astro` both build the file `/about/index.html`)
-		 *   - `'preserve'`: Astro will generate HTML files exactly as they appear in your source folder. (e.g. `src/pages/about.astro` builds `/about.html` but `src/pages/about/index.astro` builds the file `/about/index.html`) 
+		 *   - `'preserve'`: Astro will generate HTML files exactly as they appear in your source folder. (e.g. `src/pages/about.astro` builds `/about.html` and `src/pages/about/index.astro` builds the file `/about/index.html`) 
 		 *
 		 * ```js
 		 * {