instructs to use latest 1.5 to avoid error

Author: filiplajszczak

README.rst

@@ -19,7 +19,7 @@ forex-python
 
 Forex Python is a Free Foreign exchange rates and currency conversion.
 
-**Note: Install latest forex-python==1.1 to avoid RatesNotAvailableError**
+**Note: Install latest forex-python==1.5 to avoid RatesNotAvailableError**
 
 Features:
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