Update README.md

README.md

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 # 1.0.5pre
 - more calculated sensors supported. This is now be done internally by eval() so that future enhancements are easier
-- for interpolation of the heating power map now more precise cubic splines are used when scipy is installed on the platform. Scipy is not listed as requirement, since this was causing issues in past. So if you want to use more precise interpolation, please install scipy manually.
+- for interpolation of the heating power map now more precise cubic splines are used when scipy is installed on the platform. Scipy is not listed as requirement, since this was causing issues in past. So if you want to use more precise interpolation, please install scipy manually by "pip install scipy".
 - specific icons are used for some entities, to be completed in future
 - limits for setpoint temperatures now are dynamically as they are acepted by the device. (example: when comfort temperature is set to 22 degree, normal temperature cannot set to a higher value. This is now reflected in the min/max limits of the temperatures.)
 - Experimental Web-Interface: WHen available, some data are fetched from the local web-IF of the device. Therefore username and password are required as well as an individual token. The token can be obtained as follows: