pyb.UART.rst: Clean up note about stream protocol support.

docs/library/pyb.UART.rst

@@ -38,7 +38,7 @@ To check if there is anything to be read, use::
 
     uart.any()               # returns True if any characters waiting
 
-*Note:* The stream functions ``read``, ``write`` etc Are new in Micro Python since v1.3.4.
+*Note:* The stream functions ``read``, ``write``, etc. are new in Micro Python v1.3.4.
 Earlier versions use ``uart.send`` and ``uart.recv``.
 
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