Adding Initial API support, updating readme

Geekbot.net/Commands/Roll.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Threading.Tasks;
+using Discord.Commands;
+using StackExchange.Redis;
+
+namespace Geekbot.net.Commands
+{
+    public class Roll : ModuleBase
+    {
+        private readonly IDatabase redis;
+        private readonly Random rnd;
+
+        public Roll(IDatabase redis, Random RandomClient)
+        {
+            this.redis = redis;
+            rnd = RandomClient;
+        }
+
+        [Command("roll", RunMode = RunMode.Async)]
+        [Summary("Roll a number between 1 and 100.")]
+        public async Task RollCommand([Remainder] [Summary("stuff...")] string stuff = "nothing")
+        {
+            var number = rnd.Next(1, 100);
+            var guess = 1000;
+            int.TryParse(stuff, out guess);
+            if (guess <= 100 && guess > 0)
+            {
+                await ReplyAsync($"{Context.Message.Author.Mention} you rolled {number}, your guess was {guess}");
+                if (guess == number)
+                {
+                    await ReplyAsync($"Congratulations {Context.User.Username}, your guess was correct!");
+                    redis.HashIncrement($"{Context.Guild.Id}:Rolls", Context.User.Id.ToString()); 
+                }
+            }
+            else
+            {
+                await ReplyAsync(Context.Message.Author.Mention + ", you rolled " + number);
+            }
+        }
+    }
+}