Update readme with new HideDuration option

Author: aaronvb

README.md

@@ -18,7 +18,7 @@ go get -u github.com/aaronvb/logrequest
 ## Options
 There are two optional options you can pass to the `LogRequest` struct:
 
-`NewLine` (integer) - This will append N lines at the end of the log output. Note: This only works with logger output.
+#### `NewLine` (integer) - This will append N lines at the end of the log output. Note: This only works with logger output.
 
 Example:
 ```go
@@ -33,7 +33,7 @@ Started GET "/home" 127.0.0.1:12345 HTTP/1.1
 Completed 200 in 1.891ms
 ```
 
-`Timestamp` (boolean) - This will add a timestamp at the beginning of the request.
+#### `Timestamp` (boolean) - This will add a timestamp at the beginning of the request.
 
 Example:
 ```go
@@ -43,6 +43,17 @@ lr := logrequest.LogRequest{Request: r, Writer: w, Handler: next, Timestamp: tru
 Started GET "/home" 1.1.1.1:1234 HTTP/1.1 at 2020-05-13 02:25:33
 ```
 
+#### `HideDuration` (boolean) - This will hide the duration at the end of the request.
+
+Example:
+```go
+lr := logrequest.LogRequest{Request: r, Writer: w, Handler: next, Timestamp: true, HideDuration: true}
+```
+```
+Started GET "/home" 127.0.0.1:12345 HTTP/1.1
+Completed 200
+```
+
 ## Middleware Example (using [gorilla/mux](https://github.com/gorilla/mux))
 ```go
 package main