Update the links to use .html in package blog post (#436)

Author: shahmishal

_posts/2023-10-31-packages-page.md

@@ -8,7 +8,7 @@ author: [daveverwer, svenaschmidt]
 
 Today, Swift.org gains a useful, new [top-level Packages page](/packages).
 
-The page provides a streamlined entry to exploring the Swift package ecosystem. It has common categories like [server](/packages/server), [networking](/packages/networking), [testing](/packages/testing), and [logging](/packages/logging), as well as categories of interest like [packages containing macros](/packages/macros). When you select a category, it provides a sample of some widely-used packages for that category, with information to help you explore further. It’s a great way to get a sense of the variety of packages available for Swift.
+The page provides a streamlined entry to exploring the Swift package ecosystem. It has common categories like [server](/packages/server.html), [networking](/packages/networking.html), [testing](/packages/testing.html), and [logging](/packages/logging.html), as well as categories of interest like [packages containing macros](/packages/macros.html). When you select a category, it provides a sample of some widely-used packages for that category, with information to help you explore further. It’s a great way to get a sense of the variety of packages available for Swift.
 
 ![A screenshot of the packages page, showing four individual package cards in a grid](/assets/images/packages-page-blog/package-categories.png){:style="border: 1px solid #ddd;"}
 _The package lists give you relevant information at a glance._
@@ -17,7 +17,7 @@ The package lists are powered by the [Swift Package Index](https://swiftpackagei
 
 ## Community Showcase
 
-In addition to finding common categories of packages, you can also browse new and interesting work from across the Swift package ecosystem with the [Community Showcase](/packages/showcase).
+In addition to finding common categories of packages, you can also browse new and interesting work from across the Swift package ecosystem with the [Community Showcase](/packages/showcase.html).
 
 The Community Showcase contains a rotating selection of packages being discussed by the Swift community. Anyone can nominate a package in [this forum thread](https://forums.swift.org/t/nominations-for-the-packages-community-showcase-on-swift-org/68168), and nominations will be reviewed monthly by the [Swift Website Workgroup](/website-workgroup/).