Adding Entity guides, flowcharts, better sample system. (#2054)

* initial

* Interaction glossary entry

* Sharded Interaction sample

* Renames into solution

* Debugging samples

* Modify target location for webhookclient

* Finalizing docs work, resolving docfx errors.

* Adding threaduser to user chart

* Add branch info to readme.

* Edits to user chart

* Resolve format for glossary entries

* Patch sln target

* Issue with file naming fixed

* Patch 1/x for builds

* Appending suggestions

samples/InteractionFramework/Modules/UserCommandModule.cs

@@ -0,0 +1,17 @@
+using Discord;
+using Discord.Interactions;
+using Discord.WebSocket;
+using System.Threading.Tasks;
+
+namespace InteractionFramework.Modules
+{
+    // A transient module for executing commands. This module will NOT keep any information after the command is executed.
+    class UserCommandModule : InteractionModuleBase<SocketInteractionContext<SocketUserCommand>>
+    {
+        // This command will greet target user in the channel this was executed in.
+        [UserCommand("greet")]
+        public async Task GreetUserAsync(IUser user)
+            => await RespondAsync(text: $":wave: {Context.User} said hi to you, <@{user.Id}>!");
+    }
+}
+