Update README.md

README.md

@@ -2,3 +2,24 @@ mysql_microsecnow
 =================
 
 Mysql UDF to add a clone of NOW() that return microseconds
+
+After installing it, just execute in the mysql shell:
+
+<code>
+CREATE FUNCTION microsecnow RETURNS INTEGER SONAME 'microsecnow.so';
+</code>
+
+and the you can do:
+
+<code>
+mysql> SELECT MICROSECNOW();
++------------------+
+| MICROSECNOW()    |
++------------------+
+| 1393634420837085 |
++------------------+
+1 row in set (0.00 sec)
+
+mysql> 
+
+</code>