Slight modernisation of package collection documentation.

Author: daveverwer

Resources/Markdown/package-collections.md

@@ -5,7 +5,7 @@ description: The Swift Package Index supports the generation of package collecti
 
 ## Package Collections
 
-[Added in Swift 5.5](https://swift.org/blog/package-collections/), package collections are a way to group and search Swift packages. You can add collections into Xcode 13, giving you a much easier way to add your favourite or commonly used packages into your apps.
+[Added in Swift 5.5](https://swift.org/blog/package-collections/), package collections are a way to group and search Swift packages.
 
 The Swift Package Index dynamically generates package collections containing all packages from every package author in the index. Each author page includes a "Copy Package Collection URL" button that copies a link you can directly paste into Xcode. For example, from the [Vapor project's author page on the Swift Package Index](/vapor):
 
@@ -14,7 +14,7 @@ The Swift Package Index dynamically generates package collections containing all
   <img src="/images/screenshots/author-page-vapor-packages~light.png" alt="Package Collection support on the Swift Package Index.">
 </picture>
 
-### Using Package Collections with Xcode 13
+### Using Package Collections with Xcode
 
 Select your project in the Xcode project navigator, select it again in the projects and targets list, and switch to the Swift Packages tab:
 
@@ -32,8 +32,6 @@ Click the `+` button below the Packages list, and you'll see a Collections list
 
 Click the `+` at the bottom of the Collections list and paste in the URL to a package collection. That's it! You can now add packages from that collection to your project by selecting one and clicking "Add Package".
 
-> **Note:** When adding a package collection from the Swift Package Index, you'll see a warning "Package Collection Not Signed". We're working on adding support for signed collections.
-
 ### Using Package Collections with the Swift Package Manager
 
 To add a package collection using the `swift` command-line tool, use the `swift package-collection add` command:

Sources/App/Views/Author/AuthorShow+View.swift

@@ -53,7 +53,7 @@ enum AuthorShow {
                     .text("These packages are available as a package collection, "),
                     .a(
                         .href(SiteURL.packageCollections.relativeURL()),
-                        "usable in Xcode 13 or the Swift Package Manager 5.5"
+                        "usable in Xcode or SwiftPM"
                     ),
                     .text(".")
                 ),