Refactor name to fit pattern for methods returning a `Task`

src/Discord.Net.Core/IDiscordClient.cs

@@ -37,6 +37,6 @@ namespace Discord
 
         Task<IWebhook> GetWebhookAsync(ulong id, RequestOptions options = null);
 
-        Task<int> GetRecommendedShardCount(RequestOptions options = null);
+        Task<int> GetRecommendedShardCountAsync(RequestOptions options = null);
     }
 }

src/Discord.Net.Rest/BaseDiscordClient.cs

@@ -126,8 +126,8 @@ namespace Discord.Rest
         public void Dispose() => Dispose(true);
 
         /// <inheritdoc />
-        public Task<int> GetRecommendedShardCount(RequestOptions options = null)
-            => ClientHelper.GetRecommendShardCount(this, options);
+        public Task<int> GetRecommendedShardCountAsync(RequestOptions options = null)
+            => ClientHelper.GetRecommendShardCountAsync(this, options);
 
         //IDiscordClient
         ConnectionState IDiscordClient.ConnectionState => ConnectionState.Disconnected;

src/Discord.Net.Rest/ClientHelper.cs

@@ -164,7 +164,7 @@ namespace Discord.Rest
             return models.Select(x => RestVoiceRegion.Create(client, x)).FirstOrDefault(x => x.Id == id);
         }
 
-        public static async Task<int> GetRecommendShardCount(BaseDiscordClient client, RequestOptions options)
+        public static async Task<int> GetRecommendShardCountAsync(BaseDiscordClient client, RequestOptions options)
         {
             var response = await client.ApiClient.GetBotGatewayAsync(options);
             return response.Shards;

src/Discord.Net.WebSocket/DiscordShardedClient.cs

@@ -75,7 +75,7 @@ namespace Discord.WebSocket
         {
             if (_automaticShards)
             {
-                var shardCount = await GetRecommendedShardCount().ConfigureAwait(false);
+                var shardCount = await GetRecommendedShardCountAsync().ConfigureAwait(false);
                 _shardIds = Enumerable.Range(0, shardCount).ToArray();
                 _totalShards = _shardIds.Length;
                 _shards = new DiscordSocketClient[_shardIds.Length];