Added comments release-please comments on csproj file

Author: Microsoft Graph DevX Tooling

src/Microsoft.Graph.Core/Microsoft.Graph.Core.csproj

@@ -20,7 +20,12 @@
     <DelaySign>false</DelaySign>
     <AssemblyOriginatorKeyFile>35MSSharedLib1024.snk</AssemblyOriginatorKeyFile>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
+    <!-- x-release-please-start-version -->
     <VersionPrefix>3.1.13</VersionPrefix>
+    <!-- x-release-please-end -->
+    <!-- VersionPrefix minor version should not be set when the change comes from the generator. It will be updated automatically. -->
+    <!-- VersionPrefix minor version must be manually set when making manual changes to code. -->
+    <!-- VersionPrefix major and patch versions must be manually set. -->
     <VersionSuffix></VersionSuffix>
     <PackageReleaseNotes>
 - https://github.com/microsoftgraph/msgraph-sdk-dotnet-core/blob/dev/CHANGELOG.md