Merge pull request jwt-dotnet#24 from abatishchev/patch-1

Update README.md

README.md

@@ -7,40 +7,48 @@ The easiest way to install is via NuGet.  See [here](https://nuget.org/packages/
 
 ## Usage
 ### Creating Tokens
-    var payload = new Dictionary<string, object>() {
-        { "claim1", 0 },
-        { "claim2", "claim2-value" }
-    };
-    var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
-    string token = JWT.JsonWebToken.Encode(payload, secretKey, JWT.JwtHashAlgorithm.HS256);
-    Console.Out.WriteLine(token);
+
+```csharp
+var payload = new Dictionary<string, object>()
+{
+    { "claim1", 0 },
+    { "claim2", "claim2-value" }
+};
+var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
+string token = JWT.JsonWebToken.Encode(payload, secretKey, JWT.JwtHashAlgorithm.HS256);
+Console.WriteLine(token);
+```
 
 Output will be:
 
     eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjbGFpbTEiOjAsImNsYWltMiI6ImNsYWltMi12YWx1ZSJ9.8pwBI_HtXqI3UgQHQ_rDRnSQRxFL1SR8fbQoS-5kM5s
 
 ### Verifying and Decoding Tokens
 
-    var token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjbGFpbTEiOjAsImNsYWltMiI6ImNsYWltMi12YWx1ZSJ9.8pwBI_HtXqI3UgQHQ_rDRnSQRxFL1SR8fbQoS-5kM5s";
-    var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
-    try
-    {
-        string jsonPayload = JWT.JsonWebToken.Decode(token, secretKey);
-        Console.Out.WriteLine(jsonPayload);
-    }
-    catch (JWT.SignatureVerificationException)
-    {
-        Console.Out.WriteLine("Invalid token!");
-    }
+```csharp
+var token = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjbGFpbTEiOjAsImNsYWltMiI6ImNsYWltMi12YWx1ZSJ9.8pwBI_HtXqI3UgQHQ_rDRnSQRxFL1SR8fbQoS-5kM5s";
+var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
+try
+{
+    string jsonPayload = JWT.JsonWebToken.Decode(token, secretKey);
+    Console.WriteLine(jsonPayload);
+}
+catch (JWT.SignatureVerificationException)
+{
+    Console.WriteLine("Invalid token!");
+}
+```
 
 Output will be:
 
     {"claim1":0,"claim2":"claim2-value"}
 
 You can also deserialize the JSON payload directly to a .Net object with DecodeToObject:
 
-    var payload = JWT.JsonWebToken.DecodeToObject(token, secretKey) as IDictionary<string, object>;
-    Console.Out.WriteLine(payload["claim2"]);
+```csharp
+var payload = JWT.JsonWebToken.DecodeToObject(token, secretKey) as IDictionary<string, object>;
+Console.WriteLine(payload["claim2"]);
+```
 
 which will output:
 
@@ -50,12 +58,15 @@ which will output:
 
 As described in the [JWT RFC](https://tools.ietf.org/html/draft-ietf-oauth-json-web-token-32#section-4.1.4) the `exp` "claim identifies the expiration time on or after which the JWT MUST NOT be accepted for processing." If an `exp` claim is present and is prior to the current time the token will fail verification. The exp (expiry) value must be specified as the number of seconds since 1/1/1970 UTC.
 
-    var now = Math.Round((DateTime.UtcNow - new DateTime(1970,1,1,0,0,0,DateTimeKind.Utc)).TotalSeconds);
-    var payload = new Dictionary<string, object>() {
-        { "exp", now }
-    };
-    var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
-    string token = JWT.JsonWebToken.Encode(payload, secretKey, JWT.JwtHashAlgorithm.HS256);
-
-    string jsonPayload = JWT.JsonWebToken.Decode(token, secretKey);
-    // !! JWT.SignatureVerificationException
+```csharp
+var unixEpoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+var now = Math.Round((DateTime.UtcNow - unixEpoch).TotalSeconds);
+var payload = new Dictionary<string, object>()
+{
+    { "exp", now }
+};
+var secretKey = "GQDstcKsx0NHjPOuXOYg5MbeJ1XT0uFiwDVvVBrk";
+string token = JWT.JsonWebToken.Encode(payload, secretKey, JWT.JwtHashAlgorithm.HS256);
+
+string jsonPayload = JWT.JsonWebToken.Decode(token, secretKey); // JWT.SignatureVerificationException!
+```