Created 08-bulk-overwrite-of-global-slash-commands.md (#138)

* Create Create 08-bulk-overwrite-of-global-slash-commands.md

Just added what i was trying to figure out it might help others that are looking for an example.

* added a little comment

* Removed create from file name

docs/guides/interactions/application-commands/slash-commands/08-bulk-overwrite-of-global-slash-commands.md

@@ -0,0 +1,31 @@
+If you have too many global commands then you might want to consider doing a bulk overwrite.
+```cs
+public async Task Client_Ready() {
+    List<ApplicationCommandProperties> applicationCommandProperties = new();
+    try {
+        // Simple help slash command.
+        SlashCommandBuilder globalCommandHelp = new SlashCommandBuilder();
+        globalCommandHelp.WithName("help");
+        globalCommandHelp.WithDescription("Shows information about the bot.");
+        applicationCommandProperties.Add(globalCommandHelp.Build());
+        
+        // Slash command with name as its parameter.
+        SlashCommandOptionBuilder slashCommandOptionBuilder = new();
+        slashCommandOptionBuilder.WithName("name");
+        slashCommandOptionBuilder.WithType(ApplicationCommandOptionType.String);
+        slashCommandOptionBuilder.WithDescription("Add a family");
+        slashCommandOptionBuilder.WithRequired(true); // Only add this if you want it to be required
+
+        SlashCommandBuilder globalCommandAddFamily = new SlashCommandBuilder(); 
+        globalCommandAddFamily.WithName("add-family");
+        globalCommandAddFamily.WithDescription("Add a family");
+        applicationCommandProperties.Add(globalCommandAddFamily.Build());
+        
+        await _client.BulkOverwriteGlobalApplicationCommandsAsync(applicationCommandProperties.ToArray());
+    } catch (ApplicationCommandException exception) {
+        var json = JsonConvert.SerializeObject(exception.Error, Formatting.Indented);
+        Console.WriteLine(json);
+    }
+    Console.WriteLine("Client Ready: Finished");
+}
+```