Update README.rst

pycurl options

Author: cesterlizi

README.rst

@@ -91,6 +91,21 @@ is defined as follows:
     }
     client = wc.Client(options)
 
+Other options for pycurl
+
+.. code:: python
+
+    options = {
+     'recv_speed' : 3000000,
+     'send_speed' : 3000000,
+     'verbose' :True
+    }
+
+| *recv_speed: rate limit data download speed in Bytes per second. Defaults to unlimited speed.*
+| *send_speed: rate limit data upload speed in Bytes per second. Defaults to unlimited speed.*
+| *verbose: set verbose mode on/off.*
+| 
+
 **Synchronous methods**
 
 .. code:: python