Enable SourceLink, with a snupkg file

.

Author: Numpsy

appveyor.yml

@@ -7,6 +7,7 @@ build_script:
 - ps: ./Build.ps1
 artifacts:
 - path: artifacts/Serilog.*.nupkg
+- path: artifacts/Serilog.*.snupkg
 deploy:
 - provider: NuGet
   api_key:
@@ -17,7 +18,9 @@ deploy:
 - provider: GitHub
   auth_token:
     secure: p4LpVhBKxGS5WqucHxFQ5c7C8cP74kbNB0Z8k9Oxx/PMaDQ1+ibmoexNqVU5ZlmX
-  artifact: /Serilog.*\.nupkg/
+  artifacts:
+    /Serilog.*\.nupkg/
+    /Serilog.*\.snupkg/
   tag: v$(appveyor_build_version)
   on:
     branch: master

src/Serilog.Sinks.Debug/Serilog.Sinks.Debug.csproj

@@ -20,6 +20,10 @@
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
     <PackageIcon>icon.png</PackageIcon>
     <PackageReadmeFile>README.md</PackageReadmeFile>
+    <PublishRepositoryUrl>true</PublishRepositoryUrl>
+    <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <IncludeSymbols>true</IncludeSymbols>
+    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <TreatWarningsAsErrors>True</TreatWarningsAsErrors>
     <RootNamespace>Serilog</RootNamespace>