Update readme and changelog with razor tooling improvements in 1.19.0 (#2990)

Author: danroth27

CHANGELOG.md

@@ -1,19 +1,19 @@
-## Known Issues in 1.18.1
+## Known Issues in 1.19.0
 
 * Known limitations with the preview Razor (cshtml) language service to be addressed in a future release:
   * Only ASP.NET Core projects are supported (no support for ASP.NET projects)
-  * Support for tag helpers and formatting not yet implemented
-  * Limited support for colorization
+  * Limited support for colorization and formatting
   * Loss of HTML completions following C# less than (`<`) operator
   * Error squiggles misaligned for expressions near the start of a new line
-  * Incorrect errors in Blazor projects for event bindings
   * Emmet based abbreviation expansion is not yet supported
 * There currently is no completion support for package references in csproj files. ([#1156](https://github.com/OmniSharp/omnisharp-vscode/issues/1156))
   * As an alternative, consider installing the [MSBuild Project Tools](https://marketplace.visualstudio.com/items?itemName=tintoy.msbuild-project-tools) extension by @tintoy.
 
 ## 1.19.0 (April 16, 2019)
 * Improved support for .NET Core 3
 * Added support for roslyn analyzers, code fixes and rulesets which can be enabled via`omnisharp.enableRoslynAnalyzers` setting.
+* Improved Razor diagnostics
+* Razor tooling support for tag helpers
 
 ## 1.18.0 (March 26, 2019)
 

README.md

@@ -24,6 +24,8 @@ The C# extension is powered by [OmniSharp](https://github.com/OmniSharp/omnishar
 
 * Improved support for .NET Core 3
 * Added support for roslyn analyzers, code fixes and rulesets which can be enabled via`omnisharp.enableRoslynAnalyzers` setting.
+* Improved Razor diagnostics
+* Razor tooling support for tag helpers
 
 See our [change log](https://github.com/OmniSharp/omnisharp-vscode/blob/v1.19.0/CHANGELOG.md) for more detail.