Update README

Author: lewtds

README.md

@@ -16,8 +16,17 @@ Usage
 'mèo'
 >>> bogo.process_sequence('meo2', rules=bogo.get_vni_definition())
 'mèo'
+>>> bogo.process_sequence('system')
+'system'
+>>> bogo.process_sequence('system', skip_non_vietnamese=False)
+'sýtem'
 ```
 
+More help available with:
+
+```python
+>>> help(bogo.bogo)
+```
 
 Some functions from bogo.bogo are exported to package toplevel:
 
@@ -26,6 +35,4 @@ Some functions from bogo.bogo are exported to package toplevel:
 - `get_telex_definition()`
 - `get_vni_definition()`
 
-Read `help(bogo.bogo)` in the Python interpreter for more help.
-
 BoGo is extensively tested with Python 3.2 and Python 3.3.