Update index.md (dotnet#9820)

Author: Rick Anderson

aspnetcore/index.md

@@ -29,7 +29,7 @@ Millions of developers have used (and continue to use) [ASP.NET 4.x](/aspnet/ove
 ASP.NET Core MVC provides features to build [web APIs](xref:tutorials/first-web-api) and [web apps](xref:tutorials/razor-pages/index):
 
 * The [Model-View-Controller (MVC) pattern](xref:mvc/overview) helps make your web APIs and web apps testable.
-* [Razor Pages](xref:razor-pages/index) (new in ASP.NET Core 2.0) is a page-based programming model that makes building web UI easier and more productive.
+* [Razor Pages](xref:razor-pages/index) is a page-based programming model that makes building web UI easier and more productive.
 * [Razor markup](xref:mvc/views/razor) provides a productive syntax for [Razor Pages](xref:razor-pages/index) and [MVC views](xref:mvc/views/overview).
 * [Tag Helpers](xref:mvc/views/tag-helpers/intro) enable server-side code to participate in creating and rendering HTML elements in Razor files.
 * Built-in support for [multiple data formats and content negotiation](xref:web-api/advanced/formatting) lets your web APIs reach a broad range of clients, including browsers and mobile devices.
@@ -126,4 +126,4 @@ For more information, see the following resources:
 * [The weekly ASP.NET community standup](https://live.asp.net/) covers the team's progress and plans. It features new blogs and third-party software.
 
 > [!NOTE]
-> We’re testing the usability of a proposed new structure for the ASP.NET Core table of contents.  If you have a few minutes to try an exercise of finding 7 different topics in the current or proposed table of contents, please [click here to participate in the study](https://dpk4xbh5.optimalworkshop.com/treejack/rps16hd5).
+> We’re testing the usability of a proposed new structure for the ASP.NET Core table of contents.  If you have a few minutes to try an exercise of finding 7 different topics in the current or proposed table of contents, please [click here to participate in the study](https://dpk4xbh5.optimalworkshop.com/treejack/rps16hd5).