修复一些错误并更新README

InternalTypes/Miscellaneous.cs

@@ -160,7 +160,9 @@ namespace Flee.InternalTypes
         public static object Instance => OurInstance;
     }
 
-    [Obsolete("Helper class to resolve overloads")]
+    /// <summary>
+    /// 用于解析重载的辅助类
+    /// </summary>
     internal class CustomMethodInfo : IComparable<CustomMethodInfo>, IEquatable<CustomMethodInfo>
     {
         /// <summary>
@@ -494,7 +496,9 @@ namespace Flee.InternalTypes
         }
     }
 
-    [Obsolete("Wraps an expression element so that it is loaded from a local slot")]
+    /// <summary>
+    /// 包装表达式元素，使其从本地槽位加载
+    /// </summary>
     internal class LocalBasedElement : ExpressionElement
     {
         private readonly int _myIndex;
@@ -514,7 +518,9 @@ namespace Flee.InternalTypes
         public override System.Type ResultType => _myTarget.ResultType;
     }
 
-    [Obsolete("Helper class for storing strongly-typed properties")]
+    /// <summary>
+    /// 用于存储强类型属性的辅助类
+    /// </summary>
     internal class PropertyDictionary
     {
         private readonly Dictionary<string, object> _myProperties;