Updates docs

Author: pranavkm

src/Tools/dotnet-watch/README.md

@@ -30,7 +30,8 @@ Some configuration options can be passed to `dotnet watch` through environment v
 | ---------------------------------------------- | -------------------------------------------------------- |
 | DOTNET_USE_POLLING_FILE_WATCHER                | If set to "1" or "true", `dotnet watch` will use a polling file watcher instead of CoreFx's `FileSystemWatcher`. Used when watching files on network shares or Docker mounted volumes.                       |
 | DOTNET_WATCH_SUPPRESS_MSBUILD_INCREMENTALISM   | By default, `dotnet watch` optimizes the build by avoiding certain operations such as running restore or re-evaluating the set of watched files on every file change. If set to "1" or "true",  these optimizations are disabled. |
-
+| DOTNET_WATCH_SUPPRESS_LAUNCH_BROWSER   | `dotnet watch run` will attempt to launch browsers for web apps with `launchBrowser` configured in `launchSettings.json`. If set to "1" or "true", this behavior is suppressed. |
+| DOTNET_WATCH_SUPPRESS_MSBUILD_INCREMENTALISM   | `dotnet watch run` will attempt to refresh browsers when it detects file changes. If set to "1" or "true", this behavior is suppressed. This behavior is also suppressed if DOTNET_WATCH_SUPPRESS_LAUNCH_BROWSER is set. |
 ### MSBuild
 
 dotnet-watch can be configured from the MSBuild project file being watched.

src/Tools/dotnet-watch/src/dotnet-watch.csproj

@@ -57,7 +57,7 @@
     <ItemGroup>
       <_RuntimeFramework Include="@(RuntimeFramework)" />
       <RuntimeFramework Remove="@(RuntimeFramework)" />
-      <RuntimeFramework Include="Microsoft.AspNetCore.App" FrameworkName="Microsoft.AspNetCore.App" Version="5.0.0-preview.7.20329.4" />
+      <RuntimeFramework Include="Microsoft.AspNetCore.App" FrameworkName="Microsoft.AspNetCore.App" Version="5.0.0-preview" />
     </ItemGroup>
   </Target>