Update README.md to make all code examples work.

Author: mattlorimor

ProbabilisticDataStructures.sln

@@ -10,6 +10,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		Default.testsettings = Default.testsettings
 		LICENSE.txt = LICENSE.txt
 		ProbabilisticDataStructures.vsmdi = ProbabilisticDataStructures.vsmdi
+		README.md = README.md
 	EndProjectSection
 EndProject
 Global

ProbabilisticDataStructures/Element.cs

@@ -6,7 +6,7 @@
 
 namespace ProbabilisticDataStructures
 {
-    internal class Element
+    public class Element
     {
         public byte[] Data { get; set; }
         public UInt64 Freq { get; set; }

ProbabilisticDataStructures/TopK.cs

@@ -57,7 +57,7 @@ public TopK Add(byte[] data)
         /// Returns the top-k elements from lowest to highest frequency.
         /// </summary>
         /// <returns>The top-k elements from lowest to highest frequency</returns>
-        internal Element[] Elements()
+        public Element[] Elements()
         {
             return elements.Elements();
         }

README.md

@@ -234,15 +234,15 @@ namespace FilterExample
             byte[] A_BYTES = Encoding.ASCII.GetBytes("a");
             byte[] B_BYTES = Encoding.ASCII.GetBytes("b");
 
-            var cf = new CuckooFilter(1000, 0.01);
+            var cf = new CuckooBloomFilter(1000, 0.01);
 
             cf.Add(A_BYTES);
             if (cf.Test(A_BYTES))
             {
                 Console.WriteLine("contains a");
             }
 
-            if (!cf.TestAndAdd(B_BYTES))
+            if (!cf.TestAndAdd(B_BYTES).WasAlreadyAMember)
             {
                 Console.WriteLine("doesn't contain b");
             }
@@ -372,7 +372,7 @@ namespace FilterExample
             topK.Add(SARA_BYTES).Add(SARA_BYTES);
             topK.Add(BILL_BYTES);
 
-            for (var element in topK.Elements())
+            foreach (var element in topK.Elements())
             {
                 Console.WriteLine(string.Format("element: {0}, frequency: {1}", Encoding.ASCII.GetString(element.Data), element.Freq));
             }