Add a Github release notes link to csproj

Author: MaggieKimani1

src/Microsoft.OpenApi.Readers/Microsoft.OpenApi.Readers.csproj

@@ -15,9 +15,7 @@
         <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>
         <RepositoryUrl>https://github.com/Microsoft/OpenAPI.NET</RepositoryUrl>
-        <PackageReleaseNotes>
-- Fixed a bug where contact information would not read properly. #892
-        </PackageReleaseNotes>
+        <PackageReleaseNotes>https://github.com/microsoft/OpenAPI.NET/releases/tag/1.3.3</PackageReleaseNotes>
         <AssemblyName>Microsoft.OpenApi.Readers</AssemblyName>
         <RootNamespace>Microsoft.OpenApi.Readers</RootNamespace>
         <SignAssembly>true</SignAssembly>

src/Microsoft.OpenApi/Microsoft.OpenApi.csproj

@@ -16,9 +16,7 @@
         <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>
         <RepositoryUrl>https://github.com/Microsoft/OpenAPI.NET</RepositoryUrl>
-        <PackageReleaseNotes>
-- Adds support for c-style hex notation strings. #908
-        </PackageReleaseNotes>
+        <PackageReleaseNotes>https://github.com/microsoft/OpenAPI.NET/releases/tag/1.3.3</PackageReleaseNotes>
         <AssemblyName>Microsoft.OpenApi</AssemblyName>
         <RootNamespace>Microsoft.OpenApi</RootNamespace>
         <SignAssembly>true</SignAssembly>