adding docstring about Safaricom APIs handling of * characters
adding docstring about Safaricom APIs handling of * characters

harrissoerja/vumi,harrissoerja/vumi,vishwaprakashmishra/xmatrix,vishwaprakashmishra/xmatrix,harrissoerja/vumi,vishwaprakashmishra/xmatrix,TouK/vumi,TouK/vumi,TouK/vumi