修复一些错误并更新README

InternalTypes/BranchManager.cs

@@ -4,7 +4,9 @@ using System.Reflection.Emit;
 
 namespace Flee.InternalTypes
 {
-    [Obsolete("Manages branch information and allows us to determine if we should emit a short or long branch")]
+    /// <summary>
+    /// 管理分支信息，允许我们确定是否应该发出短分支或长分支
+    /// </summary>
     internal class BranchManager
     {
         private readonly IList<BranchInfo> MyBranchInfos;
@@ -143,7 +145,9 @@ namespace Flee.InternalTypes
         }
     }
 
-    [Obsolete("Represents a location in an IL stream")]
+    /// <summary>
+    /// 表示IL流中的位置
+    /// </summary>
     internal class ILLocation : IEquatable<ILLocation>, IComparable<ILLocation>
     {
         private int _myPosition;
@@ -214,7 +218,9 @@ namespace Flee.InternalTypes
         }
     }
 
-    [Obsolete("Represents a branch from a start location to an end location")]
+    /// <summary>
+    /// 表示从起始位置到结束位置的分支
+    /// </summary>
     internal class BranchInfo 
     {
         private readonly ILLocation _myStart;