update README for 0.1.2 functions

README.md

@@ -8,6 +8,8 @@ Timing is a simple library to log call time using perf4j.
 [timing "0.1.2"]
 ```
 
+### timed
+
 Just wrap forms you want to calculate call time:
 
 ```clojure
@@ -23,8 +25,31 @@ Timing will select a logging provider automatically by looking up your
 classpath (slf4j, log4j and stderr). Timing doesn't depend on any
 logging provider at compile time.
 
+### timed-fn
+
+Convert a predefined function to a timed one.
+
+```clojure
+(defn count-how-many-people-on-the-earth [req]
+  )
+
+(defroute my-website
+  (GET "/count" (timed-fn count-how-many-people-on-the-earth)))
+```
+
+### defn-timed
+
+Define a function who is born to be timed.
+
+```clojure
+(defn-timed count-how-many-ants-on-the-earth [req]
+  )
+```
+
+### wrap-timed
+
 There's also a built-in ring middleware to log call time for every
-request.
+request. `wrap-timed` uses uri as timing tags.
 
 ```clojure
 (wrap-timed handler)