Add XML docs

Author: GlebChili

.gitignore

@@ -446,3 +446,6 @@ $RECYCLE.BIN/
 !.vscode/tasks.json
 !.vscode/launch.json
 !.vscode/extensions.json
+
+## Generated XML docs
+GmodNET.Serilog.Sink/GmodNET.Serilog.Sink.xml

GmodNET.Serilog.Sink/GmodNET.Serilog.Sink.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFrameworks>net5.0;net6.0</TargetFrameworks>
@@ -10,6 +10,7 @@
     <IncludeSourceRevisionInInformationalVersion>false</IncludeSourceRevisionInInformationalVersion>
     <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild>
     <EmbedUntrackedSources>true</EmbedUntrackedSources>
+    <DocumentationFile>GmodNET.Serilog.Sink.xml</DocumentationFile>
   </PropertyGroup>
 
   <PropertyGroup>

GmodNET.Serilog.Sink/GmodSink.cs

@@ -13,6 +13,9 @@
 
 namespace GmodNET.Serilog.Sink
 {
+    /// <summary>
+    /// A Serilog Sink which logs events to Garry's Mod game console.
+    /// </summary>
     public class GmodSink : ILogEventSink
     {
         IFormatProvider formatProvider;